Remove old Chromoting iOS client

remoting/ios/data_store.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_DATA_STORE_H_
-#define REMOTING_IOS_DATA_STORE_H_
-
-#import <CoreData/CoreData.h>
-
-#import "remoting/ios/host_preferences.h"
-
-// A local data store backed by SQLLite to hold instances of HostPreferences.
-// HostPreference is defined by the Core Data Model templates see
-// ChromotingModel.xcdatamodel
-@interface DataStore : NSObject
-
-// Static pointer to the managed data store
-+ (DataStore*)sharedStore;
-
-// General methods
-- (BOOL)saveChanges;
-
-// Access methods for Hosts
-- (NSArray*)allHosts;
-- (const HostPreferences*)createHost:(NSString*)hostId;
-- (void)removeHost:(const HostPreferences*)p;
-- (const HostPreferences*)getHostForId:(NSString*)hostId;
-
-@end
-
-#endif  // REMOTING_IOS_DATA_STORE_H_