[ios] Removed CookieStoreIOS::SetCookiePolicy.

ios/chrome/app/app_delegate.mm

 // Copyright 2016 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.
 
 // ======                        New Architecture                         =====
 // =         This code is only used in the new iOS Chrome architecture.       =
 // ============================================================================
 
 #import "ios/chrome/app/app_delegate.h"
 
@@ skipping 93 matching lines @@
 // the header file. The correct solution is probably a helper object that can
 // perform all of the configuration necessary, and that can be adjusted as
 // needed.
 - (void)configureApplicationState {
   [self.applicationState.launchSteps addObjectsFromArray:@[
     [[ProviderInitializer alloc] init],
     [[SetupBundleAndUserDefaults alloc] init],
     [[StartChromeMain alloc] init],
     [[SetBrowserState alloc] init],
     [[BeginForegrounding alloc] init],
-    [[BrowserStateInitializer alloc] init],
     [[PrepareForUI alloc] init],
     [[CompleteForegrounding alloc] init],
     [[TabGridCoordinator alloc] init],
   ]];
 }
 
 @end