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

media/capture/video/chromeos/mojo/BUILD.gn

Index: media/capture/video/chromeos/mojo/BUILD.gn
diff --git a/media/capture/video/chromeos/mojo/BUILD.gn b/media/capture/video/chromeos/mojo/BUILD.gn
deleted file mode 100644
index cf4e480660702dcb1ffdac5291ab1d2aa3c01e0a..0000000000000000000000000000000000000000
--- a/media/capture/video/chromeos/mojo/BUILD.gn
+++ /dev/null
@@ -1,13 +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.
-
-import("//mojo/public/tools/bindings/mojom.gni")
-
-mojom("arc_camera3") {
-  sources = [
-    "arc_camera3.mojom",
-    "arc_camera3_metadata.mojom",
-    "camera_metadata_tags.mojom",
-  ]
-}