Remove references to IsNewAvatarMenu since the flag was removed.

chrome/browser/browser_process_impl.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/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 
@@ skipping 262 matching lines @@
   // Debugger must be cleaned up before ProfileManager.
   remote_debugging_server_.reset();
 #endif
 
   // Need to clear profiles (download managers) before the io_thread_.
   {
     TRACE_EVENT0("shutdown",
                  "BrowserProcessImpl::StartTearDown:ProfileManager");
     // The desktop User Manager needs to be closed before the guest profile
     // can be destroyed.
-    if (switches::IsNewAvatarMenu())
-      UserManager::Hide();
+    UserManager::Hide();
     profile_manager_.reset();
   }
 
   // PromoResourceService must be destroyed after the keyed services and before
   // the IO thread.
   promo_resource_service_.reset();
 
   child_process_watcher_.reset();
 
 #if defined(ENABLE_EXTENSIONS)
@@ skipping 981 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)