Delete the ViewManager and WindowManager services.

mojo/services/view_manager/interfaces/view_manager_constants.mojom

Index: mojo/services/view_manager/interfaces/view_manager_constants.mojom
diff --git a/mojo/services/view_manager/interfaces/view_manager_constants.mojom b/mojo/services/view_manager/interfaces/view_manager_constants.mojom
deleted file mode 100644
index c18fee7095bcbf98475e6b4edffb20ca5ce80173..0000000000000000000000000000000000000000
--- a/mojo/services/view_manager/interfaces/view_manager_constants.mojom
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2014 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.
-
-[DartPackage="mojo_services"]
-module mojo;
-
-enum OrderDirection {
-  ABOVE = 1,
-  BELOW,
-};