Revert of Opus implementation of the AudioDecoderFactoryTemplate API

webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc

 /*
  *  Copyright (c) 2012 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 415 matching lines @@
     audio_encoder_.reset(new AudioEncoderG722Impl(config, payload_type_));
   }
 };
 
 class AudioDecoderOpusTest : public AudioDecoderTest {
  protected:
   AudioDecoderOpusTest() : AudioDecoderTest() {
     codec_input_rate_hz_ = 48000;
     frame_size_ = 480;
     data_length_ = 10 * frame_size_;
-    decoder_ = new AudioDecoderOpusImpl(1);
+    decoder_ = new AudioDecoderOpus(1);
     AudioEncoderOpusConfig config;
     config.frame_size_ms = static_cast<int>(frame_size_) / 48;
     config.application = AudioEncoderOpusConfig::ApplicationMode::kVoip;
     audio_encoder_ = AudioEncoderOpus::MakeAudioEncoder(config, payload_type_);
   }
 };
 
 class AudioDecoderOpusStereoTest : public AudioDecoderOpusTest {
  protected:
   AudioDecoderOpusStereoTest() : AudioDecoderOpusTest() {
     channels_ = 2;
     delete decoder_;
-    decoder_ = new AudioDecoderOpusImpl(2);
+    decoder_ = new AudioDecoderOpus(2);
     AudioEncoderOpusConfig config;
     config.frame_size_ms = static_cast<int>(frame_size_) / 48;
     config.num_channels = 2;
     config.application = AudioEncoderOpusConfig::ApplicationMode::kAudio;
     audio_encoder_ = AudioEncoderOpus::MakeAudioEncoder(config, payload_type_);
   }
 };
 
 TEST_F(AudioDecoderPcmUTest, EncodeDecode) {
   int tolerance = 251;
@@ skipping 225 matching lines @@
   EXPECT_TRUE(CodecSupported(NetEqDecoder::kDecoderCNGnb));
   EXPECT_TRUE(CodecSupported(NetEqDecoder::kDecoderCNGwb));
   EXPECT_TRUE(CodecSupported(NetEqDecoder::kDecoderCNGswb32kHz));
   EXPECT_TRUE(CodecSupported(NetEqDecoder::kDecoderCNGswb48kHz));
   EXPECT_TRUE(CodecSupported(NetEqDecoder::kDecoderArbitrary));
   EXPECT_EQ(has_opus, CodecSupported(NetEqDecoder::kDecoderOpus));
   EXPECT_EQ(has_opus, CodecSupported(NetEqDecoder::kDecoderOpus_2ch));
 }
 
 }  // namespace webrtc