[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/commonUI/general/test/controllers/DateTimeFieldControllerSpec.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/controllers/DateTimeFieldController", "moment"],
     function (DateTimeFieldController, moment) {
-        'use strict';
 
         var TEST_FORMAT = "YYYY-MM-DD HH:mm:ss";