Revert of Rename AppRTCDemo on Android and iOS to AppRTCMobile

webrtc/examples/objc/AppRTCMobile/RTCSessionDescription+JSON.m

-/*
- *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#import "RTCSessionDescription+JSON.h"
-
-static NSString const *kRTCSessionDescriptionTypeKey = @"type";
-static NSString const *kRTCSessionDescriptionSdpKey = @"sdp";
-
-@implementation RTCSessionDescription (JSON)
-
-+ (RTCSessionDescription *)descriptionFromJSONDictionary:
-    (NSDictionary *)dictionary {
-  NSString *typeString = dictionary[kRTCSessionDescriptionTypeKey];
-  RTCSdpType type = [[self class] typeForString:typeString];
-  NSString *sdp = dictionary[kRTCSessionDescriptionSdpKey];
-  return [[RTCSessionDescription alloc] initWithType:type sdp:sdp];
-}
-
-- (NSData *)JSONData {
-  NSString *type = [[self class] stringForType:self.type];
-  NSDictionary *json = @{
-    kRTCSessionDescriptionTypeKey : type,
-    kRTCSessionDescriptionSdpKey : self.sdp
-  };
-  return [NSJSONSerialization dataWithJSONObject:json options:0 error:nil];
-}
-
-@end