Remove GardeningServer.

Tools/GardeningServer/ui/test/ct-embedded-flakiness-dashboard-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-embedded-flakiness-dashboard.html">
-
-<script>
-(function () {
-
-var assert = chai.assert;
-
-describe('ct-embedded-flakiness-dashboard', function() {
-
-  describe('iframe location', function() {
-    var embeddedFlakinessDashboard;
-
-    after(function() {
-      document.body.removeChild(embeddedFlakinessDashboard);
-    });
-
-    it('should point the iframe to the dashboard', function(done) {
-      var failure = new CTStepFailure('foo_tests', 'foo/bar.html');
-      failure.embeddedFlakinessDashboardURL = function() {
-        return 'placeholder.html?' + this.flakinessDashboardURL() + '&showChrome=false';
-      }
-
-      embeddedFlakinessDashboard = document.createElement('ct-embedded-flakiness-dashboard');
-      embeddedFlakinessDashboard.hidden = true;
-      embeddedFlakinessDashboard.test = failure;
-      document.body.appendChild(embeddedFlakinessDashboard);
-
-      var iframe = embeddedFlakinessDashboard.shadowRoot.querySelector('#iframe');
-      iframe.addEventListener('load', function() {
-        assert.include(iframe.contentWindow.location.href,
-                       failure.embeddedFlakinessDashboardURL());
-        done();
-      });
-    });
-  });
-
-  it('should respond to heightChanged', function(done) {
-    var embeddedFlakinessDashboard = document.createElement('ct-embedded-flakiness-dashboard');
-
-    var finishTest = function() {
-      window.removeEventListener('message', finishTest);
-      var iframe = embeddedFlakinessDashboard.shadowRoot.querySelector('#iframe');
-      assert.equal(iframe.style.height, '100px');
-      done();
-    };
-
-    window.addEventListener('message', finishTest);
-    window.postMessage({command: 'heightChanged', height: "100"}, '*');
-  });
-});
-
-})()
-</script>