Reland of move RTPPayloadStrategy and simplify RTPPayloadRegistry

webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h

Index: webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h b/webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h
index a1d60ade8e333f84f371fa54c21d79c1cd83b9ee..4b5524877c77206c58eb8db145ba0f88202b75c9 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h
+++ b/webrtc/modules/rtp_rtcp/source/rtp_receiver_impl.h
@@ -35,12 +35,6 @@ class RtpReceiverImpl : public RtpReceiver {
 
   int32_t RegisterReceivePayload(const CodecInst& audio_codec) override;
   int32_t RegisterReceivePayload(const VideoCodec& video_codec) override;
-  // TODO(magjed): Remove once external code is updated.
-  int32_t RegisterReceivePayload(const char payload_name[RTP_PAYLOAD_NAME_SIZE],
-                                 const int8_t payload_type,
-                                 const uint32_t frequency,
-                                 const size_t channels,
-                                 const uint32_t rate) override;
 
   int32_t DeRegisterReceivePayload(const int8_t payload_type) override;