Revert of chromeos: adds TouchDeviceServer and wires up in mushrome

ui/display/manager/chromeos/mojo/touch_device_transform.mojom

Index: ui/display/manager/chromeos/mojo/touch_device_transform.mojom
diff --git a/ui/display/manager/chromeos/mojo/touch_device_transform.mojom b/ui/display/manager/chromeos/mojo/touch_device_transform.mojom
deleted file mode 100644
index 3daa99133375c7ca750f8b77c73126bb13e4f937..0000000000000000000000000000000000000000
--- a/ui/display/manager/chromeos/mojo/touch_device_transform.mojom
+++ /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.
-
-module display.mojom;
-
-import "ui/gfx/mojo/transform.mojom";
-
-struct TouchDeviceTransform {
-  int64 display_id;
-  int32 device_id;
-  gfx.mojom.Transform transform;
-};