Delete unused member RTCPSender::FeedbackState::send_payload_type.

webrtc/modules/rtp_rtcp/source/rtcp_sender.cc

 /*
  *  Copyright (c) 2012 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 59 matching lines @@
 
 std::string NACKStringBuilder::GetResult() {
   if (consecutive_) {
     stream_ << "-" << prevNack_;
     consecutive_ = false;
   }
   return stream_.str();
 }
 
 RTCPSender::FeedbackState::FeedbackState()
-    : send_payload_type(0),
-      packets_sent(0),
+    : packets_sent(0),
       media_bytes_sent(0),
       send_bitrate(0),
       last_rr_ntp_secs(0),
       last_rr_ntp_frac(0),
       remote_sr(0),
       has_last_xr_rr(false),
       module(nullptr) {}
 
 class PacketContainer : public rtcp::CompoundPacket,
                         public rtcp::RtcpPacket::PacketReadyCallback {
@@ skipping 911 matching lines @@
     max_packet_size = max_packet_size_;
   }
 
   RTC_DCHECK_LE(max_packet_size, IP_PACKET_SIZE);
   uint8_t buffer[IP_PACKET_SIZE];
   return packet.BuildExternalBuffer(buffer, max_packet_size, &sender) &&
          !sender.send_failure_;
 }
 
 }  // namespace webrtc