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

webrtc/modules/rtp_rtcp/source/rtcp_packet/remb.cc

 /*
  *  Copyright (c) 2016 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 85 matching lines @@
                   size_t* index,
                   size_t max_length,
                   RtcpPacket::PacketReadyCallback* callback) const {
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
       return false;
   }
   size_t index_end = *index + BlockLength();
   CreateHeader(kFeedbackMessageType, kPacketType, HeaderLength(), packet,
                index);
-  RTC_DCHECK_EQ(0u, Psfb::media_ssrc());
+  RTC_DCHECK_EQ(0, Psfb::media_ssrc());
   CreateCommonFeedback(packet + *index);
   *index += kCommonFeedbackLength;
 
   ByteWriter<uint32_t>::WriteBigEndian(packet + *index, kUniqueIdentifier);
   *index += sizeof(uint32_t);
   const uint32_t kMaxMantissa = 0x3ffff;  // 18 bits.
   uint64_t mantissa = bitrate_bps_;
   uint8_t exponenta = 0;
   while (mantissa > kMaxMantissa) {
     mantissa >>= 1;
     ++exponenta;
   }
   packet[(*index)++] = ssrcs_.size();
   packet[(*index)++] = (exponenta << 2) | (mantissa >> 16);
   ByteWriter<uint16_t>::WriteBigEndian(packet + *index, mantissa & 0xffff);
   *index += sizeof(uint16_t);
 
   for (uint32_t ssrc : ssrcs_) {
     ByteWriter<uint32_t>::WriteBigEndian(packet + *index, ssrc);
     *index += sizeof(uint32_t);
   }
   RTC_DCHECK_EQ(index_end, *index);
   return true;
 }
 }  // namespace rtcp
 }  // namespace webrtc