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

webrtc/modules/audio_processing/gain_control_impl.cc

Index: webrtc/modules/audio_processing/gain_control_impl.cc
diff --git a/webrtc/modules/audio_processing/gain_control_impl.cc b/webrtc/modules/audio_processing/gain_control_impl.cc
index 81469dde01b3f59c278e7639f7f2b77d4d878371..704cfade097cb7797e059f5002b798baf9ad444f 100644
--- a/webrtc/modules/audio_processing/gain_control_impl.cc
+++ b/webrtc/modules/audio_processing/gain_control_impl.cc
@@ -123,7 +123,7 @@ void GainControlImpl::ProcessRenderAudio(
 void GainControlImpl::PackRenderAudioBuffer(
     AudioBuffer* audio,
     std::vector<int16_t>* packed_buffer) {
-  RTC_DCHECK_GE(160u, audio->num_frames_per_band());
+  RTC_DCHECK_GE(160, audio->num_frames_per_band());
 
   packed_buffer->clear();
   packed_buffer->insert(
@@ -139,7 +139,7 @@ int GainControlImpl::AnalyzeCaptureAudio(AudioBuffer* audio) {
   }
 
   RTC_DCHECK(num_proc_channels_);
-  RTC_DCHECK_GE(160u, audio->num_frames_per_band());
+  RTC_DCHECK_GE(160, audio->num_frames_per_band());
   RTC_DCHECK_EQ(audio->num_channels(), *num_proc_channels_);
   RTC_DCHECK_LE(*num_proc_channels_, gain_controllers_.size());
 
@@ -190,7 +190,7 @@ int GainControlImpl::ProcessCaptureAudio(AudioBuffer* audio,
   }
 
   RTC_DCHECK(num_proc_channels_);
-  RTC_DCHECK_GE(160u, audio->num_frames_per_band());
+  RTC_DCHECK_GE(160, audio->num_frames_per_band());
   RTC_DCHECK_EQ(audio->num_channels(), *num_proc_channels_);
 
   stream_is_saturated_ = false;