[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

platform/features/layout/test/elements/ElementFactorySpec.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,jasmine*/
 
 define(
     ['../../src/elements/ElementFactory'],
     function (ElementFactory) {
-        "use strict";
 
         var DIALOG_ELEMENTS = [ 'image', 'text' ],
             NON_DIALOG_ELEMENTS = [ 'box', 'line' ];