webui: remove the precendent for silly, invalid end of jsdoc comments, e.g.

chrome/browser/ui/webui/options/profile_settings_reset_browsertest.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * TestFixture for profile settings reset WebUI testing.
  * @extends {testing.Test}
  * @constructor
- **/
+ */
 function ProfileSettingsResetWebUITest() {}
 
 ProfileSettingsResetWebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /**
    * Browse to the reset profile settings page.
-   **/
+   */
   browsePreload: 'chrome://settings-frame/resetProfileSettings',
 };
 
 // Test opening the profile settings reset has correct location.
 TEST_F('ProfileSettingsResetWebUITest', 'testOpenProfileSettingsReset',
        function() {
          assertEquals(this.browsePreload, document.location.href);
        });