MD Settings: adjust iron-list focus row behaviors.

chrome/test/data/webui/settings/cr_settings_browsertest.js

 // Copyright 2015 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.
 
 /** @fileoverview Runs the Polymer Settings tests. */
 
 /** @const {string} Path to source root. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 1401 matching lines @@
 
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'test_browser_proxy.js',
     'test_extension_control_browser_proxy.js',
     'extension_controlled_indicator_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsExtensionControlledIndicatorTest', 'All', function() {
   mocha.run();
-});
-
-/**
- * Test fixture for the Date and Time page.
- * @constructor
- * @extends {CrSettingsBrowserTest}
- */
-function CrSettingsFocusableIronListItemBehavior() {}
-
-CrSettingsFocusableIronListItemBehavior.prototype = {
-  __proto__: CrSettingsBrowserTest.prototype,
-
-  /** @override */
-  browsePreload: 'chrome://md-settings/focusable_iron_list_item_behavior.html',
-
-  /** @override */
-  extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
-    'focusable_iron_list_item_behavior_test.js',
-  ]),
-};
-
-TEST_F('CrSettingsFocusableIronListItemBehavior', 'FocusTest', function() {
-  mocha.run();
-});
+});