Revert of Extract bitrate allocation of spatial/temporal layers out of codec impl.

webrtc/modules/video_coding/codecs/vp8/simulcast_unittest.cc

 /*
  *  Copyright (c) 2014 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 68 matching lines @@
   TestVp8Simulcast::TestSaptioTemporalLayers333PatternEncoder();
 }
 
 TEST_F(TestVp8Impl, TestSpatioTemporalLayers321PatternEncoder) {
   TestVp8Simulcast::TestSpatioTemporalLayers321PatternEncoder();
 }
 
 TEST_F(TestVp8Impl, TestStrideEncodeDecode) {
   TestVp8Simulcast::TestStrideEncodeDecode();
 }
+
+TEST_F(TestVp8Impl, TestSkipEncodingUnusedStreams) {
+  TestVp8Simulcast::TestSkipEncodingUnusedStreams();
+}
+
 }  // namespace testing
 }  // namespace webrtc