[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/commonUI/general/test/services/PopupSpec.js

@@ -19,13 +19,11 @@
  * 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/services/Popup"],
     function (Popup) {
-        'use strict';
 
         describe("Popup", function () {
             var mockElement,