Simplify some old avatar menu button code.

chrome/browser/ui/views/frame/browser_frame.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/leak_annotations.h"
@@ skipping 254 matching lines @@
   }
 #endif
   if (!menu_model_builder_.get()) {
     menu_model_builder_.reset(
         new SystemMenuModelBuilder(browser_view_, browser_view_->browser()));
     menu_model_builder_->Init();
   }
   return menu_model_builder_->menu_model();
 }
 
-AvatarMenuButton* BrowserFrame::GetAvatarMenuButton() {
-  return browser_frame_view_->avatar_button();
-}
-
 views::View* BrowserFrame::GetNewAvatarMenuButton() {
   return browser_frame_view_->GetProfileSwitcherView();
 }