Remove detailed release notes link

There are other links that get there indirectly.

Author: brson

index.html

@@ -78,7 +78,6 @@
               </ul>
 	  </li>
 	  <li><a href="https://github.com/mozilla/rust/wiki/Doc-releases">Previous releases</a></li>
-	  <li><a href="https://github.com/mozilla/rust/wiki/Doc-detailed-release-notes">Detailed release notes</a></li>
           </ul>
       </li>
 	  <li>Resources