Revert of [DeviceService] Add service tests for VibrationManager.

services/device/device_service_test_base.h

-// 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.
-
-#ifndef SERVICES_DEVICE_DEVICE_SERVICE_TEST_BASE_H_
-#define SERVICES_DEVICE_DEVICE_SERVICE_TEST_BASE_H_
-
-#include "base/macros.h"
-#include "services/service_manager/public/cpp/service_test.h"
-
-namespace device {
-
-// Base class responsible to setup Device Service for test.
-class DeviceServiceTestBase : public service_manager::test::ServiceTest {
- public:
-  DeviceServiceTestBase();
-  ~DeviceServiceTestBase() override;
-
- private:
-  // service_manager::test::ServiceTest:
-  std::unique_ptr<service_manager::Service> CreateService() override;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceServiceTestBase);
-};
-
-}  // namespace device
-
-#endif  // SERVICES_DEVICE_DEVICE_SERVICE_TEST_BASE_H_