Delete all log messages depending on system_wrappers.

webrtc/modules/audio_processing/echo_control_mobile_impl.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.
  */
 
 #include "webrtc/modules/audio_processing/echo_control_mobile_impl.h"
 
 #include <string.h>
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/modules/audio_processing/aecm/echo_control_mobile.h"
 #include "webrtc/modules/audio_processing/audio_buffer.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 
 namespace {
 int16_t MapSetting(EchoControlMobile::RoutingMode mode) {
   switch (mode) {
     case EchoControlMobile::kQuietEarpieceOrHeadset:
       return 0;
     case EchoControlMobile::kEarpiece:
       return 1;
@@ skipping 318 matching lines @@
   rtc::CritScope cs_capture(crit_capture_);
 
   stream_properties_.reset(new StreamProperties(
       sample_rate_hz, num_reverse_channels, num_output_channels));
 
   if (!enabled_) {
     return;
   }
 
   if (stream_properties_->sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
-    LOG(LS_ERROR) << "AECM only supports 16 kHz or lower sample rates";
   }
 
   cancellers_.resize(
       NumCancellersRequired(stream_properties_->num_output_channels,
                             stream_properties_->num_reverse_channels));
 
   for (auto& canceller : cancellers_) {
     if (!canceller) {
       canceller.reset(new Canceller());
     }
@@ skipping 14 matching lines @@
   for (auto& canceller : cancellers_) {
     int handle_error = WebRtcAecm_set_config(canceller->state(), config);
     if (handle_error != AudioProcessing::kNoError) {
       error = handle_error;
     }
   }
   return error;
 }
 
 }  // namespace webrtc