[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/commonUI/general/test/UnsupportedBrowserWarningSpec.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*/
 
 define(
     ["../src/UnsupportedBrowserWarning"],
     function (UnsupportedBrowserWarning) {
-        "use strict";
 
         var MOBILE_BROWSER = "Safari",
             DESKTOP_BROWSER = "Chrome",