Revert of Drop frames until specified bitrate is achieved.

webrtc/modules/video_coding/utility/default_video_bitrate_allocator.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 17 matching lines @@
     return allocation;
 
   if (total_bitrate_bps < codec_.minBitrate * 1000) {
     allocation.SetBitrate(0, 0, codec_.minBitrate * 1000);
   } else if (codec_.maxBitrate > 0 &&
              total_bitrate_bps > codec_.maxBitrate * 1000) {
     allocation.SetBitrate(0, 0, codec_.maxBitrate * 1000);
   } else {
     allocation.SetBitrate(0, 0, total_bitrate_bps);
   }
+
   return allocation;
 }
 
 uint32_t DefaultVideoBitrateAllocator::GetPreferredBitrateBps(
     uint32_t framerate) {
   return GetAllocation(codec_.maxBitrate * 1000, framerate).get_sum_bps();
 }
 
 }  // namespace webrtc