[css-regions] close issue 15679 as a dup of 21132

Author: astearns

css-regions/Overview.html

@@ -1800,16 +1800,6 @@ <h3 id=processing-model><span class=secno>5.1. </span>Processing model</h3>
 
   <h2 id="cssom_view_and_css_regions"><span class=secno>6. </span>CSSOM</h2>
 
-  <div class=issue-marker-wrapper>
-   <div class=issue-marker data-bug_id=15679 data-bug_status=NEW> <a
-    href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15679">Issue-15679</a>
-
-    <div class=issue-details>
-     <p class=short-desc>elementFromPoint and CSS regions
-    </div>
-   </div>
-  </div>
-
   <p>Since content may flow into multiple regions, authors need a way to
    determine if there are enough regions to flow all the content from a named
    flow. This is especially important considering that the size of regions or

css-regions/Overview.src.html

@@ -1632,18 +1632,6 @@ <h3 id="processing-model">Processing model</h3>
 
     <h2 id="cssom_view_and_css_regions">CSSOM</h2>
 
-    <div class="issue-marker-wrapper">
-    <div class="issue-marker" data-bug_id="15679" data-bug_status="NEW">
-        <a href=
-        "https://www.w3.org/Bugs/Public/show_bug.cgi?id=15679">Issue-15679</a>
-
-        <div class="issue-details">
-            <p class="short-desc">elementFromPoint and CSS regions</p>
-        </div>
-    </div>
-    </div>
-    </div>
-
     <p>Since content may flow into multiple regions, authors need a way to
     determine if there are enough regions to flow all the content from a named
     flow. This is especially important considering that the size of regions or