cast: cleanup rtp header and parsing

media/cast/net/rtp/rtp_receiver_defines.cc

Index: media/cast/net/rtp/rtp_receiver_defines.cc
diff --git a/media/cast/net/rtp/rtp_receiver_defines.cc b/media/cast/net/rtp/rtp_receiver_defines.cc
deleted file mode 100644
index 325b3058f670fdab8d919678d27e4badfa60daa3..0000000000000000000000000000000000000000
--- a/media/cast/net/rtp/rtp_receiver_defines.cc
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "media/cast/net/rtp/rtp_receiver_defines.h"
-
-namespace media {
-namespace cast {
-
-RtpCastHeader::RtpCastHeader()
-    : marker(false),
-      payload_type(0),
-      sequence_number(0),
-      rtp_timestamp(0),
-      sender_ssrc(0),
-      is_key_frame(false),
-      frame_id(0),
-      packet_id(0),
-      max_packet_id(0),
-      reference_frame_id(0),
-      new_playout_delay_ms(0) {}
-
-RtpPayloadFeedback::~RtpPayloadFeedback() {}
-
-}  // namespace cast
-}  // namespace media