Delete channel_factory_interface.h

This file should have been deleted when its build target went away.

Bug: webrtc:13931
Change-Id: Ice007f771987fe085605413f89d36c6eb078a0c2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266320
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37271}
diff --git a/pc/channel_factory_interface.h b/pc/channel_factory_interface.h
deleted file mode 100644
index 6cae0ba..0000000
--- a/pc/channel_factory_interface.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- *  Copyright 2004 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 PC_CHANNEL_FACTORY_INTERFACE_H_
-#define PC_CHANNEL_FACTORY_INTERFACE_H_
-
-#include <memory>
-#include <string>
-
-#include "api/audio_options.h"
-#include "api/crypto/crypto_options.h"
-#include "api/video/video_bitrate_allocator_factory.h"
-#include "call/call.h"
-#include "media/base/media_channel.h"
-#include "media/base/media_config.h"
-
-namespace cricket {
-
-class VideoChannel;
-class VoiceChannel;
-
-class ChannelFactoryInterface {
- public:
-  virtual std::unique_ptr<VideoChannel> CreateVideoChannel(
-      webrtc::Call* call,
-      const MediaConfig& media_config,
-      absl::string_view mid,
-      bool srtp_required,
-      const webrtc::CryptoOptions& crypto_options,
-      const VideoOptions& options,
-      webrtc::VideoBitrateAllocatorFactory*
-          video_bitrate_allocator_factory) = 0;
-
-  virtual std::unique_ptr<VoiceChannel> CreateVoiceChannel(
-      webrtc::Call* call,
-      const MediaConfig& media_config,
-      absl::string_view mid,
-      bool srtp_required,
-      const webrtc::CryptoOptions& crypto_options,
-      const AudioOptions& options) = 0;
-
- protected:
-  virtual ~ChannelFactoryInterface() = default;
-};
-
-}  // namespace cricket
-
-#endif  // PC_CHANNEL_FACTORY_INTERFACE_H_