[DevTools] Remove removeAllListeners method.

third_party/WebKit/Source/devtools/front_end/profiler/ProfilesPanel.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 590 matching lines @@
     this._profileGroups = {};
     this._updateToggleRecordAction(false);
     this._launcherView.profileFinished();
 
     this._sidebarTree.element.classList.remove('some-expandable');
 
     this._launcherView.detach();
     this.profileViews.removeChildren();
     this._profileViewToolbar.removeToolbarItems();
 
-    this.removeAllListeners();
-
     this._profileViewToolbar.element.classList.remove('hidden');
     this.clearResultsButton.element.classList.remove('hidden');
     this.profilesItemTreeElement.select();
     this._showLauncherView();
   }
 
   _showLauncherView() {
     this.closeVisibleView();
     this._profileViewToolbar.removeToolbarItems();
     this._launcherView.show(this.profileViews);
@@ skipping 622 matching lines @@
    * @param {string} actionId
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var panel = UI.context.flavor(Profiler.ProfilesPanel);
     console.assert(panel && panel instanceof Profiler.ProfilesPanel);
     panel.toggleRecord();
     return true;
   }
 };