Removing feed.xml

It's not relevant for our site.

Author: sbliven

_includes/header.html

@@ -21,8 +21,6 @@ <h1><a href="{{ site.baseurl }}/index.html"><img src="{{ site.baseurl }}/images/
             {% endfor %}
             <li><a href="{{ "/docs/api4.2.1/index.html" | prepend: side.baseurl }}">Javadoc API (4.2.1)</a></li>
             <li><a href="{{ "/docs/api1.9.1/index.html" | prepend: side.baseurl }}">Javadoc API (1.9.1)</a></li>
-            <li><a href="{{ "/feed.xml" | prepend: site.baseurl }}"
-              class="icon fa-feed"> RSS Feed</a></li>
           </ul>
         </div>
       </li>