[e] (0) Remove redundant 'must'.

Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7369 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -70545,7 +70545,7 @@ <h4 id=navigating-across-documents><span class=secno>6.6.1 </span>Navigating acr
    <li><p><a href=#prompt-to-unload-a-document title="prompt to unload a document">Prompt to
    unload</a> the <code><a href=#document>Document</a></code> object. If the user
    <a href=#refused-to-allow-the-document-to-be-unloaded>refused to allow the document to be unloaded</a>, then
-   these steps must be aborted.</li>
+   abort these steps.</li>
 
    <li><p><a href=#abort-a-document title="abort a document">Abort</a> the
    <a href=#active-document>active document</a> of the <a href=#browsing-context>browsing

index

@@ -70545,7 +70545,7 @@ State: <OUTPUT NAME=I>1</OUTPUT> <INPUT VALUE="Increment" TYPE=BU
    <li><p><a href=#prompt-to-unload-a-document title="prompt to unload a document">Prompt to
    unload</a> the <code><a href=#document>Document</a></code> object. If the user
    <a href=#refused-to-allow-the-document-to-be-unloaded>refused to allow the document to be unloaded</a>, then
-   these steps must be aborted.</li>
+   abort these steps.</li>
 
    <li><p><a href=#abort-a-document title="abort a document">Abort</a> the
    <a href=#active-document>active document</a> of the <a href=#browsing-context>browsing

source

@@ -82475,7 +82475,7 @@ State: <OUTPUT NAME=I>1</OUTPUT> <INPUT VALUE="Increment" TYPE=BUTTON O
    <li><p><span title="prompt to unload a document">Prompt to
    unload</span> the <code>Document</code> object. If the user
    <span>refused to allow the document to be unloaded</span>, then
-   these steps must be aborted.</p></li>
+   abort these steps.</p></li>
 
    <li><p><span title="abort a document">Abort</span> the
    <span>active document</span> of the <span>browsing