Delete dead code now that the polymer port of garden-o-matic is done.

Tools/GardeningServer/ui/ct-sheriff-o-matic.html

 <!--
 Copyright 2014 The Chromium Authors. All rights reserved.
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 -->
 
 <script src="../bower_components/sugar/release/sugar-full.development.js"></script>
 <script src="../scripts/base.js"></script>
 <script src="../scripts/builders.js"></script>
 <script src="../scripts/config.js"></script>
 <script src="../scripts/model.js"></script>
 <script src="../scripts/net.js"></script>
 <script src="../scripts/results.js"></script>
-<script src="../scripts/rollbot.js"></script>
 <script src="../scripts/svn-log.js"></script>
 <script src="../scripts/treestatus.js"></script>
 <script src="../scripts/ui.js"></script>
 
 <link rel="import" href="../bower_components/core-animated-pages/core-animated-pages.html">
 <link rel="import" href="../bower_components/core-animated-pages/transitions/slide-from-right.html">
 <link rel="import" href="../bower_components/paper-tabs/paper-tab.html">
 <link rel="import" href="../bower_components/paper-tabs/paper-tabs.html">
 <link rel="import" href="ct-results-panel.html">
 <link rel="import" href="ct-unexpected-failures.html">
@@ skipping 21 matching lines @@
       selected: 0,
       currentFailures: [],
 
       onExamine: function(event) {
         this.currentFailures = event.detail;
         this.selected = 1;
       },
     });
   </script>
 </polymer-element>