Remove outdated description from writing mode propagation tests

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-032.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-033.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-034.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-035.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-035-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-036.html

@@ -14,7 +14,7 @@
   <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1102175" title="Bug 1102175: &lt;body&gt; with writing-mode: vertical-rl does not align children to the right ">
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-037.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-038.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-039.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-035-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-040.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-041.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-042.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-042-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation. Finally, in order to make sure that the principal writing mode is indeed 'sideways-rl', the test checks that a simple text is not affected by 'text-orientation: upright' since 'text-orientation: upright' should have no impact and no rendering effect on it.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Finally, in order to make sure that the principal writing mode is indeed 'sideways-rl', the test checks that a simple text is not affected by 'text-orientation: upright' since 'text-orientation: upright' should have no impact and no rendering effect on it.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-043.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-035-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-044.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-044-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation. We also check that the computed value is unaffected by inheriting it into a pseudo element.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. We also check that the computed value is unaffected by inheriting it into a pseudo element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-045.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-046.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-047.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-047-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-048.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-049.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-049-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation. Finally, in order to make sure that the principal writing mode is indeed 'vertical-rl', the test checks that a simple text is affected by 'text-orientation: upright' since 'text-orientation: upright' should have a rendering effect on it.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Finally, in order to make sure that the principal writing mode is indeed 'vertical-rl', the test checks that a simple text is affected by 'text-orientation: upright' since 'text-orientation: upright' should have a rendering effect on it.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-050.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-051.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-035-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-052.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="wm-propagation-body-033-ref.html">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified

LayoutTests/imported/w3c/web-platform-tests/css/css-writing-modes/wm-propagation-body-053.html

@@ -13,7 +13,7 @@
   -->
   <link rel="match" href="block-flow-direction-025-ref.xht">
 
-  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation.">
+  <meta name="assert" content="This test checks that when the root element has a &lt;body&gt; child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element.">
 
   <!--
   Tests 032 to 035: html's writing-mode is not specified