Remove GardeningServer.

Tools/GardeningServer/model/ct-builder-list.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.
--->
-
-<link rel='import' href='ct-builder.html'>
-
-<script>
-// .builders[i] will have the CTBuilder objects
-function CTBuilderList(failures) {
-  this.builders = [];
-
-  if (!Array.isArray(failures))
-    failures = [failures];
-
-  var builderMap = {};
-  failures.forEach(function(failure) {
-    var results = failure.resultNodesByBuilder;
-    Object.keys(results, (function(builder, result) {
-      if (!builderMap[builder])
-        builderMap[builder] = {};
-      builderMap[builder][result.masterUrl] = {
-        failingBuildCount: result.failingBuildCount,
-      };
-    }).bind(this));
-  }, this);
-
-  Object.keys(builderMap).sort().forEach(function(builder) {
-    Object.keys(builderMap[builder]).sort().forEach(function(masterUrl) {
-      var result = builderMap[builder][masterUrl];
-      this.builders.push(new CTBuilder(masterUrl, builder, result.failingBuildCount));
-    }, this);
-  }, this);
-}
-</script>