Remove deprecated functions in rtp_rtcp module

webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc

Index: webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc b/webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc
index e379580a04ed0498a63033a4586ba839c373d016..091d27161ffde0c85086504dd4fe8dc8a20e0087 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_payload_registry.cc
@@ -230,15 +230,6 @@ bool RTPPayloadRegistry::IsRtxInternal(const RTPHeader& header) const {
   return rtx_ && ssrc_rtx_ == header.ssrc;
 }
 
-bool RTPPayloadRegistry::RestoreOriginalPacket(uint8_t** restored_packet,
-                                               const uint8_t* packet,
-                                               size_t* packet_length,
-                                               uint32_t original_ssrc,
-                                               const RTPHeader& header) const {
-  return RestoreOriginalPacket(*restored_packet, packet, packet_length,
-                               original_ssrc, header);
-}
-
 bool RTPPayloadRegistry::RestoreOriginalPacket(uint8_t* restored_packet,
                                                const uint8_t* packet,
                                                size_t* packet_length,