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

webrtc/modules/audio_coding/acm2/codec_manager.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 193 matching lines @@
         return;
       }
 
       // Extract the speech encoder from the ACM.
       std::unique_ptr<AudioEncoder> enc = std::move(*encoder);
       while (true) {
         auto sub_enc = enc->ReclaimContainedEncoders();
         if (sub_enc.empty()) {
           break;
         }
-        RTC_CHECK_EQ(1u, sub_enc.size());
+        RTC_CHECK_EQ(1, sub_enc.size());
 
         // Replace enc with its sub encoder. We need to put the sub encoder in
         // a temporary first, since otherwise the old value of enc would be
         // destroyed before the new value got assigned, which would be bad
         // since the new value is a part of the old value.
         auto tmp_enc = std::move(sub_enc[0]);
         enc = std::move(tmp_enc);
       }
 
       // Wrap it in a new encoder stack and put it back.
@@ skipping 22 matching lines @@
   if (!stack) {
     return false;
   }
   acm->SetEncoder(std::move(stack));
   recreate_encoder_ = false;
   return true;
 }
 
 }  // namespace acm2
 }  // namespace webrtc