Delete all log messages depending on system_wrappers.

webrtc/modules/audio_processing/level_controller/level_controller.cc

Index: webrtc/modules/audio_processing/level_controller/level_controller.cc
diff --git a/webrtc/modules/audio_processing/level_controller/level_controller.cc b/webrtc/modules/audio_processing/level_controller/level_controller.cc
index 67c94695afe18903cda901e87c03bb8847c27ea2..a01c0eb7f4489481066ba7c4c8fc60245c2d132e 100644
--- a/webrtc/modules/audio_processing/level_controller/level_controller.cc
+++ b/webrtc/modules/audio_processing/level_controller/level_controller.cc
@@ -25,7 +25,6 @@
 #include "webrtc/modules/audio_processing/level_controller/saturating_gain_estimator.h"
 #include "webrtc/modules/audio_processing/level_controller/signal_classifier.h"
 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h"
-#include "webrtc/system_wrappers/include/logging.h"
 #include "webrtc/system_wrappers/include/metrics.h"
 
 namespace webrtc {
@@ -156,22 +155,8 @@ void LevelController::Metrics::Update(float long_term_peak_level,
     const int frame_peak_level_dbfs = static_cast<int>(
         10 * log10(frame_peak_level * frame_peak_level + 1e-10f) - kdBFSOffset);
 
-    LOG(LS_INFO) << "Level Controller metrics: {"
-                 << "Max noise power: " << max_noise_power_dbfs << " dBFS, "
-                 << "Average noise power: " << average_noise_power_dbfs
-                 << " dBFS, "
-                 << "Max long term peak level: " << max_peak_level_dbfs
-                 << " dBFS, "
-                 << "Average long term peak level: " << average_peak_level_dbfs
-                 << " dBFS, "
-                 << "Max gain: " << max_gain_db << " dB, "
-                 << "Average gain: " << average_gain_db << " dB, "
-                 << "Long term peak level: " << long_term_peak_level_dbfs
-                 << " dBFS, "
-                 << "Last frame peak level: " << frame_peak_level_dbfs
-                 << " dBFS"
-                 << "}";
-
+    (void) long_term_peak_level_dbfs;
+    (void) frame_peak_level_dbfs;
     Reset();
   }
 }