Delete deprecated PeerConnection methods, and corresponding using declarations.

webrtc/sdk/android/src/jni/peerconnection_jni.cc

 /*
  *  Copyright 2013 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.
  */
 
@@ skipping 146 matching lines @@
   return init;
 }
 
 class ConstraintsWrapper;
 
 // Adapter between the C++ PeerConnectionObserver interface and the Java
 // PeerConnection.Observer interface.  Wraps an instance of the Java interface
 // and dispatches C++ callbacks to Java.
 class PCOJava : public PeerConnectionObserver {
  public:
-  // We need these using declarations because there are two versions of each of
-  // the below methods and we only override one of them.
-  // TODO(deadbeef): Remove once there's only one version of the methods.
-  using PeerConnectionObserver::OnAddStream;
-  using PeerConnectionObserver::OnRemoveStream;
-  using PeerConnectionObserver::OnDataChannel;
-
   PCOJava(JNIEnv* jni, jobject j_observer)
       : j_observer_global_(jni, j_observer),
         j_observer_class_(jni, GetObjectClass(jni, *j_observer_global_)),
         j_media_stream_class_(jni, FindClass(jni, "org/webrtc/MediaStream")),
         j_media_stream_ctor_(
             GetMethodID(jni, *j_media_stream_class_, "<init>", "(J)V")),
         j_audio_track_class_(jni, FindClass(jni, "org/webrtc/AudioTrack")),
         j_audio_track_ctor_(
             GetMethodID(jni, *j_audio_track_class_, "<init>", "(J)V")),
         j_video_track_class_(jni, FindClass(jni, "org/webrtc/VideoTrack")),
@@ skipping 2425 matching lines @@
   reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)
       ->SetObserver(nullptr);
   RtpReceiverObserver* observer =
       reinterpret_cast<RtpReceiverObserver*>(j_observer_pointer);
   if (observer) {
     delete observer;
   }
 }
 
 }  // namespace webrtc_jni