[css-ruby] Remove issue about auto-hide text comparison and clarify i…

…nteraction with text-transform: using DOM text is easier since all implementations maintain a copy of the DOM text, but not all maintain one of post-collapsed text. (Best for authors would be after white-space collapsing and before text-transform, but probably few people will run into a case where it matters.) It must be prior to text-transform because 'text-transform: large-kana' is a relevant use case for ruby.

css-ruby/Overview.html

@@ -855,11 +855,10 @@ <h3 id=autohide><span class=secno>2.4. </span> Autohiding Annotations</h3>
    this level it is always forced.
 
   <p>The content comparison for this auto-hiding behavior takes place prior
-   to white space collapsing and ignores elements (considers only the
-   <code>textContent</code> of the boxes).
-
-  <p class=issue>Is before or after white space collapsing easier? We should
-   do whatever is easier, as it really doesn't matter much which way to go.
+   to white space collapsing (‘<code class=property>white-space</code>’)
+   and text transformation (‘<code class=property>text-transform</code>’)
+   and ignores elements (considers only the <code>textContent</code> of the
+   boxes).
 
   <h3 id=white-space><span class=secno>2.5. </span> White Space</h3>
 

css-ruby/Overview.src.html

@@ -504,9 +504,8 @@ <h3 id="autohide">
 		but in this level it is always forced.
 
 	<p>The content comparison for this auto-hiding behavior
-	takes place prior to white space collapsing
+	takes place prior to white space collapsing ('white-space') and text transformation ('text-transform')
 	and ignores elements (considers only the <code>textContent</code> of the boxes).
-	<p class="issue">Is before or after white space collapsing easier? We should do whatever is easier, as it really doesn't matter much which way to go.
 
 <h3 id="white-space">
 White Space</h3>