Remove references to IsNewAvatarMenu since the flag was removed.

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <cmath>
 #include <numeric>
 
 #include "base/command_line.h"
@@ skipping 1371 matching lines @@
       g_browser_process->profile_manager()->GetProfileInfoCache();
   if (cache.GetIndexOfProfileWithPath(browser_->profile()->GetPath()) ==
       std::string::npos) {
     return NO;
   }
 
   return AvatarMenu::ShouldShowAvatarMenu();
 }
 
 - (BOOL)shouldUseNewAvatarButton {
-  return switches::IsNewAvatarMenu() &&
-      profiles::IsRegularOrGuestSession(browser_.get());
+  return profiles::IsRegularOrGuestSession(browser_.get());
 }
 
 - (BOOL)isBookmarkBarVisible {
   return [bookmarkBarController_ isVisible];
 }
 
 - (BOOL)isBookmarkBarAnimating {
   return [bookmarkBarController_ isAnimationRunning];
 }
 
@@ skipping 657 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)