Revert of media: add video capture device for ARC++ camera HAL v3

media/capture/video/chromeos/camera_metadata_utils.h

Index: media/capture/video/chromeos/camera_metadata_utils.h
diff --git a/media/capture/video/chromeos/camera_metadata_utils.h b/media/capture/video/chromeos/camera_metadata_utils.h
deleted file mode 100644
index 62e9090838e7fb6b9e3a41db6ca2f0acd3ea7347..0000000000000000000000000000000000000000
--- a/media/capture/video/chromeos/camera_metadata_utils.h
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "media/capture/video/chromeos/mojo/arc_camera3_metadata.mojom.h"
-
-namespace media {
-
-const arc::mojom::CameraMetadataEntryPtr* GetMetadataEntry(
-    const arc::mojom::CameraMetadataPtr& camera_metadata,
-    arc::mojom::CameraMetadataTag tag);
-
-void MergeMetadata(arc::mojom::CameraMetadataPtr* to,
-                   const arc::mojom::CameraMetadataPtr& from);
-
-}  // namespace media