Delete unneeded includes of deprecated system_wrappers include files.

webrtc/modules/video_coding/media_opt_util.h

 /*
  *  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.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_MEDIA_OPT_UTIL_H_
 #define WEBRTC_MODULES_VIDEO_CODING_MEDIA_OPT_UTIL_H_
 
 #include <math.h>
 #include <stdlib.h>
 
 #include <memory>
 
 #include "webrtc/base/numerics/exp_filter.h"
 #include "webrtc/modules/video_coding/internal_defines.h"
-#include "webrtc/system_wrappers/include/trace.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 namespace media_optimization {
 
 // Number of time periods used for (max) window filter for packet loss
 // TODO(marpan): set reasonable window size for filtered packet loss,
 // adjustment should be based on logged/real data of loss stats/correlation.
 enum { kLossPrHistorySize = 10 };
 
@@ skipping 320 matching lines @@
   rtc::ExpFilter _packetsPerFrameKey;
   size_t _codecWidth;
   size_t _codecHeight;
   int _numLayers;
 };
 
 }  // namespace media_optimization
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_MEDIA_OPT_UTIL_H_