RTC_[D]CHECK_op: Remove "u" suffix on integer constants

webrtc/modules/audio_processing/voice_detection_impl.cc

Index: webrtc/modules/audio_processing/voice_detection_impl.cc
diff --git a/webrtc/modules/audio_processing/voice_detection_impl.cc b/webrtc/modules/audio_processing/voice_detection_impl.cc
index a0702e868e02523dbfcff728043e9a43d4531116..5365ed083c69fdd84a24372a5b4e6a62502104e8 100644
--- a/webrtc/modules/audio_processing/voice_detection_impl.cc
+++ b/webrtc/modules/audio_processing/voice_detection_impl.cc
@@ -63,7 +63,7 @@ void VoiceDetectionImpl::ProcessCaptureAudio(AudioBuffer* audio) {
     return;
   }
 
-  RTC_DCHECK_GE(160u, audio->num_frames_per_band());
+  RTC_DCHECK_GE(160, audio->num_frames_per_band());
   // TODO(ajm): concatenate data in frame buffer here.
   int vad_ret = WebRtcVad_Process(vad_->state(), sample_rate_hz_,
                                   audio->mixed_low_pass_data(),