iOS factories for SigninManager and GaiaCookieManagerService

ios/public/test/test_keyed_service_provider.cc

Index: ios/public/test/test_keyed_service_provider.cc
diff --git a/ios/public/test/test_keyed_service_provider.cc b/ios/public/test/test_keyed_service_provider.cc
index 3edbd60ec09e19e8b3caa62076593bad8789d031..d9451e7962fba5b55e06667aaa4987e715a8442e 100644
--- a/ios/public/test/test_keyed_service_provider.cc
+++ b/ios/public/test/test_keyed_service_provider.cc
@@ -82,15 +82,6 @@ TestKeyedServiceProvider::GetBookmarkModelForBrowserState(
   return nullptr;
 }
 
-KeyedServiceBaseFactory* TestKeyedServiceProvider::GetSigninManagerFactory() {
-  return MissingServiceKeyedServiceFactory::GetInstance();
-}
-
-SigninManager* TestKeyedServiceProvider::GetSigninManagerForBrowserState(
-    ChromeBrowserState* browser_state) {
-  return nullptr;
-}
-
 KeyedServiceBaseFactory*
 TestKeyedServiceProvider::GetPersonalDataManagerFactory() {
   return MissingServiceKeyedServiceFactory::GetInstance();