Remove old Chromoting iOS client

remoting/ios/authorize.h

-// Copyright 2014 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.
-
-#ifndef REMOTING_IOS_AUTHORIZE_H_
-#define REMOTING_IOS_AUTHORIZE_H_
-
-#import <UIKit/UIKit.h>
-
-// TODO (aboone) This include is for The Google Toolbox for Mac OAuth 2
-// https://code.google.com/p/gtm-oauth2/ This may need to be added as a
-// third-party or locate the proper project in Chromium.
-#import "GTMOAuth2Authentication.h"
-
-@interface Authorize : NSObject
-
-+ (GTMOAuth2Authentication*)getAnyExistingAuthorization;
-
-+ (void)beginRequest:(GTMOAuth2Authentication*)authorization
-             delegate:self
-    didFinishSelector:(SEL)sel;
-
-+ (void)appendCredentials:(NSMutableURLRequest*)request;
-
-+ (UINavigationController*)createLoginController:(id)delegate
-                                finishedSelector:(SEL)finishedSelector;
-
-@end
-
-#endif  // REMOTING_IOS_AUTHORIZE_H_