Revert of Shape Detection: Implement FaceDetection on Mac as out-of-process service

services/shape_detection/public/interfaces/BUILD.gn

 # 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("interfaces") {
   sources = [
     "barcodedetection.mojom",
-    "constants.mojom",
     "facedetection.mojom",
     "facedetection_provider.mojom",
     "textdetection.mojom",
   ]
 
   public_deps = [
     "//ui/gfx/geometry/mojo",
   ]
 }