Remove remaining dead code that was used to implement grouped permission drop downs

chrome/browser/ui/views/permission_bubble/permission_prompt_impl.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_PERMISSION_BUBBLE_PERMISSION_PROMPT_IMPL_H_
 #define CHROME_BROWSER_UI_VIEWS_PERMISSION_BUBBLE_PERMISSION_PROMPT_IMPL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 18 matching lines @@
   // PermissionPrompt:
   void SetDelegate(Delegate* delegate) override;
   void Show() override;
   bool CanAcceptRequestUpdate() override;
   bool HidesAutomatically() override;
   void Hide() override;
   void UpdateAnchorPosition() override;
   gfx::NativeWindow GetNativeWindow() override;
 
   void Closing();
-  void ToggleAccept(int index, bool value);
   void TogglePersist(bool value);
   void Accept();
   void Deny();
 
  private:
   // These three functions have separate implementations for Views-based and
   // Cocoa-based browsers, to allow this bubble to be used in either.
 
   // Returns the view to anchor the permission bubble to. May be null.
   views::View* GetAnchorView();
   // Returns the anchor point to anchor the permission bubble to, as a fallback.
   // Only used if GetAnchorView() returns nullptr.
   gfx::Point GetAnchorPoint();
   // Returns the type of arrow to display on the permission bubble.
   views::BubbleBorder::Arrow GetAnchorArrow();
 
   Browser* browser_;
   Delegate* delegate_;
   PermissionsBubbleDialogDelegateView* bubble_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionPromptImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PERMISSION_BUBBLE_PERMISSION_PROMPT_IMPL_H_