Remove dead Jenkins URL

index.html

@@ -53,9 +53,6 @@
           <li id="nav-issues"><a href="#/issues">Issues<span class="sr-only">(current)</span></a></li>
           <li id="nav-pullrequests"><a href="#/pullrequests">Pull Requests</a></li>
         </ul>
-        <ul class="nav nav-sidebar">
-          <li id="nav-jenkins"><a href="https://webqa-ci.mozilla.com/">Jenkins</a></li>
-        </ul>
         <ul class="nav nav-sidebar">
           <li><a href="https://quality.mozilla.org/teams/test-engineering/">About Firefox Test Engineering</a></li>
           <li><a href="http://firefox-test-engineering.readthedocs.io/">Documentation</a></li>