[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/commonUI/browse/test/windowing/NewTabActionSpec.js

@@ -19,12 +19,10 @@
  * this source code distribution or the Licensing information page available
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
-/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine,afterEach,window*/
 
 define(
     ["../../src/windowing/NewTabAction"],
     function (NewTabAction) {
-        "use strict";
         
         describe("The new tab action", function () {
             var actionSelected,