RtpRtcp: Remove the SetSendREDPayloadType and SendREDPayloadType methods

webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h

Index: webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h b/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h
index d540593923b8f4a25e756adbb70b819afee0785e..b8dec6c5e5286ac2fb75140ea997b326bd966ede 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.h
@@ -55,12 +55,6 @@ class RTPSenderAudio : public DTMFqueue {
 
   int AudioFrequency() const;
 
-  // Set payload type for Redundant Audio Data RFC 2198
-  int32_t SetRED(int8_t payload_type);
-
-  // Get payload type for Redundant Audio Data RFC 2198
-  int32_t RED(int8_t* payload_type) const;
-
  protected:
   bool SendTelephoneEventPacket(
       bool ended,
@@ -90,8 +84,6 @@ class RTPSenderAudio : public DTMFqueue {
   int64_t dtmf_time_last_sent_;
   uint32_t dtmf_timestamp_last_sent_;
 
-  int8_t red_payload_type_ GUARDED_BY(send_audio_critsect_);
-
   // VAD detection, used for marker bit.
   bool inband_vad_active_ GUARDED_BY(send_audio_critsect_);
   int8_t cngnb_payload_type_ GUARDED_BY(send_audio_critsect_);