Delete unneeded includes of deprecated system_wrappers include files.

webrtc/modules/audio_coding/acm2/acm_codec_database.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.
  */
 
 /*
  * This file generates databases with information about all supported audio
  * codecs.
  */
 
 // TODO(tlegrand): Change constant input pointers in all functions to constant
 // references, where appropriate.
 #include "webrtc/modules/audio_coding/acm2/acm_codec_database.h"
 
 #include <assert.h>
 
 #include "webrtc/base/checks.h"
-#include "webrtc/system_wrappers/include/trace.h"
 
 #if ((defined WEBRTC_CODEC_ISAC) && (defined WEBRTC_CODEC_ISACFX))
 #error iSAC and iSACFX codecs cannot be enabled at the same time
 #endif
 
 namespace webrtc {
 
 namespace acm2 {
 
 namespace {
@@ skipping 307 matching lines @@
 }
 // Gets codec id number from database for the receiver.
 int ACMCodecDB::ReceiverCodecNumber(const CodecInst& codec_inst) {
   // Look for a matching codec in the database.
   return CodecId(codec_inst);
 }
 
 }  // namespace acm2
 
 }  // namespace webrtc