[Shadow DOM] [Bug 28659] Remove "HTML Elements and Their Shadow Trees…

…" section.

spec/shadow/index.html

@@ -1190,49 +1190,6 @@ <h3>Attributes</h3>
 
     </section>
 
-    <section>
-      <h2>HTML Elements and Their Shadow Trees</h2>
-
-      <p>Per <a title="HTML">specification</a>, some <a>HTML elements</a> are designed to either not render their contents or have special requirements in regard to contents rendering. In order to reconcile these differences in rendering behavior with the <a>composed tree</a>, all <a>HTML elements</a> <strong>must</strong> have an <a title="processing equivalence">equivalent</a> of a <a>closed</a> <a>shadow tree</a> that is created and populated at the time of <a>element</a> instantiation. It is up to a user agent to define the content of these trees. However, all conforming user agents <strong>must</strong> satisfy the following requirements:</p>
-
-      <table>
-        <thead>
-          <tr>
-            <th style="width: 30%">HTML Element</th>
-            <th>Shadow Tree Requirements</th>
-          </tr>
-        </thead>
-        <tbody>
-          <tr>
-            <td><a title="img element"><code>img</code></a>, <a title="iframe element"><code>iframe</code></a>, <a title="embed element"><code>embed</code></a>, <a title="object element"><code>object</code></a>, <a title="video element"><code>video</code></a>, <a title="audio element"><code>audio</code></a>, <a title="canvas element"><code>canvas</code></a>, <a title="map element"><code>map</code></a>, <a title="input element"><code>input</code></a>, <a title="textarea element"><code>textarea</code></a>, <a title="progress element"><code>progress</code></a>, <a title="meter element"><code>meter</code></a></td>
-            <td>If the <a>element</a> can have <a>fallback content</a>, contains one <a>content insertion point</a>. The <a>matching criteria</a> value is the <a>universal selector</a> only when the <a>element</a> needs to show <a>fallback content</a>. Otherwise, contains no <a title="content insertion point">content insertion points</a> or an <a>content insertion point</a> that matches nothing.</td>
-          </tr>
-          <tr>
-            <td><a title="fieldset element"><code>fieldset</code></a></td>
-            <td>Contains two <a title="content insertion point">content insertion points</a> with the following <a>matching criteria</a>:
-              <ol>
-                <li><code>legend:first-of-type</code></li>
-                <li><a>universal selector</a></li>
-              </ol>
-            </td>
-          </tr>
-          <tr>
-            <td><a title="details element"><code>details</code></a></td>
-            <td>Contains two <a title="content insertion point">content insertion points</a> with the following <a>matching criteria</a>:
-              <ol>
-                <li><code>summary:first-of-type</code></li>
-                <li><a>universal selector</a></li>
-              </ol>
-            </td>
-          </tr>
-          <tr>
-            <td>All other <a title="element">elements</a></td>
-            <td>Contains one <a>content insertion point</a> with the <a>universal selector</a> as the <a>matching criteria</a></td>
-          </tr>
-        </tbody>
-      </table>
-    </section>
-
     <section>
       <h2>Elements and DOM interfaces</h2>