Remove GardeningServer.

Tools/GardeningServer/model/test/ct-commit-list-tests.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-commit-list.html">
-
-<script>
-(function () {
-
-var assert = chai.assert;
-
-describe('ct-commit-list', function() {
-  describe('commit list Model', function() {
-    it('returns commits', function() {
-      var revisions = ['blink:158545'];
-      var cl = new CTCommitList(new CTCommitLogMock(), revisions);
-      assert.lengthOf(cl.repositories, 1);
-    });
-
-    it ('returns repositories', function() {
-      var revisions = ['blink:158545'];
-      var cl = new CTCommitList(new CTCommitLogMock(), revisions);
-      var repos = cl.repositories;
-      assert.lengthOf(repos, 1);
-      assert.equal(repos[0].name, 'blink');
-      assert.lengthOf(repos[0].commits, 1);
-      assert.equal(repos[0].range, '158545 : 158545')
-    });
-  });
-});
-
-})();
-</script>