Revert of Introduce the devices Mojo app

device/devices_app/main.cc

Index: device/devices_app/main.cc
diff --git a/device/devices_app/main.cc b/device/devices_app/main.cc
deleted file mode 100644
index e82edb34e917478a4380240f82a2eff916ccd1f9..0000000000000000000000000000000000000000
--- a/device/devices_app/main.cc
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2015 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 "base/sequenced_task_runner.h"
-#include "device/devices_app/devices_app.h"
-#include "mojo/application/public/cpp/application_runner.h"
-#include "third_party/mojo/src/mojo/public/c/system/main.h"
-
-MojoResult MojoMain(MojoHandle shell_handle) {
-  mojo::ApplicationRunner runner(
-      device::DevicesApp::CreateDelegate(nullptr).release());
-  return runner.Run(shell_handle);
-}