Start removing deprecated Options UI code

chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

 // Copyright 2013 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/webui/signin/user_manager_screen_handler.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 288 matching lines @@
 
   // TODO(mahmadi): Remove the following once prefs are cleared for everyone.
   PrefService* service = g_browser_process->local_state();
   DCHECK(service);
 
   const PrefService::Preference* guest_mode_enabled_pref =
       service->FindPreference(prefs::kBrowserGuestModeEnabled);
   const PrefService::Preference* add_person_enabled_pref =
       service->FindPreference(prefs::kBrowserAddPersonEnabled);
 
-  if (base::FeatureList::IsEnabled(features::kMaterialDesignSettings) &&
-      (guest_mode_enabled_pref->HasUserSetting() ||
-       add_person_enabled_pref->HasUserSetting())) {
+  if (guest_mode_enabled_pref->HasUserSetting() ||
+      add_person_enabled_pref->HasUserSetting()) {
     service->ClearPref(guest_mode_enabled_pref->name());
     service->ClearPref(add_person_enabled_pref->name());
     base::RecordAction(
         base::UserMetricsAction("UserManager_Cleared_Legacy_User_Prefs"));
   }
 }
 
 UserManagerScreenHandler::~UserManagerScreenHandler() {
   proximity_auth::ScreenlockBridge::Get()->SetLockHandler(NULL);
 }
@@ skipping 734 matching lines @@
     Profile* profile, Profile::CreateStatus profile_create_status) {
   Browser* browser = chrome::FindAnyBrowser(profile, false);
   if (browser && browser->window()) {
     OnBrowserWindowReady(browser);
   } else {
     registrar_.Add(this,
                    chrome::NOTIFICATION_BROWSER_WINDOW_READY,
                    content::NotificationService::AllSources());
   }
 }