Revert of Opus implementation of the AudioDecoderFactoryTemplate API

webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc

Index: webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc
diff --git a/webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc b/webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc
index e485565758ab8b7ad0c5920570a1b39c787becdb..21fbc7c616057c75beaa507fc8f22d9050c3868d 100644
--- a/webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc
+++ b/webrtc/api/audio_codecs/test/audio_decoder_factory_template_unittest.cc
@@ -10,7 +10,6 @@
 
 #include "webrtc/api/audio_codecs/audio_decoder_factory_template.h"
 #include "webrtc/api/audio_codecs/g722/audio_decoder_g722.h"
-#include "webrtc/api/audio_codecs/opus/audio_decoder_opus.h"
 #include "webrtc/base/ptr_util.h"
 #include "webrtc/test/gmock.h"
 #include "webrtc/test/gtest.h"
@@ -125,21 +124,4 @@
   EXPECT_EQ(16000, dec->SampleRateHz());
 }
 
-TEST(AudioDecoderFactoryTemplateTest, Opus) {
-  auto factory = CreateAudioDecoderFactory<AudioDecoderOpus>();
-  AudioCodecInfo opus_info{48000, 1, 64000, 6000, 510000};
-  opus_info.allow_comfort_noise = false;
-  opus_info.supports_network_adaption = true;
-  const SdpAudioFormat opus_format(
-      {"opus", 48000, 2, {{"minptime", "10"}, {"useinbandfec", "1"}}});
-  EXPECT_THAT(factory->GetSupportedDecoders(),
-              testing::ElementsAre(AudioCodecSpec{opus_format, opus_info}));
-  EXPECT_FALSE(factory->IsSupportedDecoder({"opus", 48000, 1}));
-  EXPECT_TRUE(factory->IsSupportedDecoder({"opus", 48000, 2}));
-  EXPECT_EQ(nullptr, factory->MakeAudioDecoder({"bar", 16000, 1}));
-  auto dec = factory->MakeAudioDecoder({"opus", 48000, 2});
-  ASSERT_NE(nullptr, dec);
-  EXPECT_EQ(48000, dec->SampleRateHz());
-}
-
 }  // namespace webrtc