[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/features/clock/test/controllers/TimerControllerSpec.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,describe,it,expect,beforeEach,waitsFor,jasmine,window,afterEach*/
 
 define(
     ["../../src/controllers/TimerController"],
     function (TimerController) {
-        "use strict";
 
         // Wed, 03 Jun 2015 17:56:14 GMT
         var TEST_TIMESTAMP = 1433354174000;