Remove chrome/ code to handle App Notifications

chrome/test/data/extensions/platform_apps/restrictions/main.js

 // Copyright (c) 2012 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.
 
 var assertEq = chrome.test.assertEq;
 var assertTrue = chrome.test.assertTrue;
 var fail = chrome.test.fail;
 var succeed = chrome.test.succeed;
 
 function assertThrowsError(method, opt_expectedError) {
@@ skipping 147 matching lines @@
 
   function testLegacyApis() {
     if (chrome.app) {
       assertEq('undefined', typeof(chrome.app.getIsInstalled));
       assertEq('undefined', typeof(chrome.app.install));
       assertEq('undefined', typeof(chrome.app.isInstalled));
       assertEq('undefined', typeof(chrome.app.getDetails));
       assertEq('undefined', typeof(chrome.app.getDetailsForFrame));
       assertEq('undefined', typeof(chrome.app.runningState));
     }
-    assertEq('undefined', typeof(chrome.appNotifications));
     assertEq('undefined', typeof(chrome.extension));
     succeed();
   },
 
   function testExtensionApis() {
     assertEq('undefined', typeof(chrome.tabs));
     assertEq('undefined', typeof(chrome.windows));
     succeed();
   }
 ]);