Revert of [Mojo Video Capture] Adapt video_capture service to refactored video capture stack

services/video_capture/device_media_to_mojo_adapter.h

Index: services/video_capture/device_media_to_mojo_adapter.h
diff --git a/services/video_capture/device_media_to_mojo_adapter.h b/services/video_capture/device_media_to_mojo_adapter.h
index e09e9c08b3c8f1213e0f8dfeb99e47fab7d1c79d..dd3a712525fa91e0ba35e50161d667fea6e31c6f 100644
--- a/services/video_capture/device_media_to_mojo_adapter.h
+++ b/services/video_capture/device_media_to_mojo_adapter.h
@@ -24,16 +24,10 @@
   // mojom::Device:
   void Start(const media::VideoCaptureParams& requested_settings,
              mojom::ReceiverPtr receiver) override;
-  void OnReceiverReportingUtilization(int32_t frame_feedback_id,
-                                      double utilization) override;
 
   void Stop();
 
   void OnClientConnectionErrorOrClose();
-
-  // Returns the fixed maximum number of buffers passed to the constructor
-  // of VideoCaptureBufferPoolImpl.
-  static int max_buffer_pool_buffer_count();
 
  private:
   const std::unique_ptr<media::VideoCaptureDevice> device_;