Reland of Split iOS sdk in to separate targets

webrtc/sdk/objc/Framework/Classes/RTCAudioTrack+Private.h

Index: webrtc/sdk/objc/Framework/Classes/RTCAudioTrack+Private.h
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCAudioTrack+Private.h b/webrtc/sdk/objc/Framework/Classes/RTCAudioTrack+Private.h
deleted file mode 100644
index ea14fb35baa15f6b7e17e5d6bd32e33b10615b1a..0000000000000000000000000000000000000000
--- a/webrtc/sdk/objc/Framework/Classes/RTCAudioTrack+Private.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- *  Copyright 2015 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 "WebRTC/RTCAudioTrack.h"
-
-#include "webrtc/api/mediastreaminterface.h"
-
-NS_ASSUME_NONNULL_BEGIN
-
-@class RTCPeerConnectionFactory;
-@interface RTCAudioTrack ()
-
-/** AudioTrackInterface created or passed in at construction. */
-@property(nonatomic, readonly)
-    rtc::scoped_refptr<webrtc::AudioTrackInterface> nativeAudioTrack;
-
-/** Initialize an RTCAudioTrack with an id. */
-- (instancetype)initWithFactory:(RTCPeerConnectionFactory *)factory
-                         source:(RTCAudioSource *)source
-                        trackId:(NSString *)trackId;
-
-@end
-
-NS_ASSUME_NONNULL_END