MDUserManager: respect policy-controlled toggles for adding a profile and browsing as guest

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

Index: chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
diff --git a/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc b/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
index 97712cfbc1d99fa97de21e2dc75693a0bc4197c9..8c7387cc7d2de26ae47a80aaf0541a4da40f25a7 100644
--- a/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
+++ b/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
@@ -140,16 +140,12 @@ extensions::ScreenlockPrivateEventRouter* GetScreenlockRouter(
 }
 
 bool IsGuestModeEnabled() {
-  if (switches::IsMaterialDesignUserManager())
-    return true;
   PrefService* service = g_browser_process->local_state();
   DCHECK(service);
   return service->GetBoolean(prefs::kBrowserGuestModeEnabled);
 }
 
 bool IsAddPersonEnabled() {
-  if (switches::IsMaterialDesignUserManager())
-    return true;
   PrefService* service = g_browser_process->local_state();
   DCHECK(service);
   return service->GetBoolean(prefs::kBrowserAddPersonEnabled);