[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/features/timeline/test/TimelineConstantsSpec.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/TimelineConstants'],
     function (TimelineConstants) {
-        "use strict";
         describe("The set of Timeline constants", function () {
             it("specifies a handle width", function () {
                 expect(TimelineConstants.HANDLE_WIDTH)