[Build] Remove boilerplate from scripts

No longer necessary after JSHint configuration.

src/legacyRegistrySpec.js

@@ -19,13 +19,11 @@
  * 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,runs,jasmine*/
 
 define([
     './legacyRegistry',
     './BundleRegistry'
 ], function (legacyRegistry, BundleRegistry) {
-    'use strict';
 
     describe("legacyRegistry", function () {
         it("is a BundleRegistry", function () {