Revert of L16 implementation of the Audio{En,De}coderFactoryTemplate APIs

webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h

Index: webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h
diff --git a/webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h b/webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h
deleted file mode 100644
index 5d764c96096818cb7007f41d38d7f5f7fcfb1356..0000000000000000000000000000000000000000
--- a/webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- *  Copyright (c) 2017 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.
- */
-
-#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_PCM16B_COMMON_H_
-#define WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_PCM16B_COMMON_H_
-
-#include <vector>
-
-#include "webrtc/api/audio_codecs/audio_decoder_factory.h"
-
-namespace webrtc {
-void Pcm16BAppendSupportedCodecSpecs(std::vector<AudioCodecSpec>* specs);
-}
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_PCM16B_COMMON_H_