[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/features/clock/test/actions/AbstractStartTimerActionSpec.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/actions/AbstractStartTimerAction"],
     function (AbstractStartTimerAction) {
-        "use strict";
 
         describe("A timer's start/restart action", function () {
             var mockNow,