Revert of Move //device/generic_sensor to be part of the internal implementation of the Device Service.

services/device/generic_sensor/fake_platform_sensor_provider.h

Index: services/device/generic_sensor/fake_platform_sensor_provider.h
diff --git a/services/device/generic_sensor/fake_platform_sensor_provider.h b/services/device/generic_sensor/fake_platform_sensor_provider.h
deleted file mode 100644
index 40f27d915b1c313fd6f89aaf0078f1c5886fde03..0000000000000000000000000000000000000000
--- a/services/device/generic_sensor/fake_platform_sensor_provider.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2016 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_GENERIC_SENSOR_FAKE_PLATFORM_SENSOR_PROVIDER_H_
-#define SERVICES_DEVICE_GENERIC_SENSOR_FAKE_PLATFORM_SENSOR_PROVIDER_H_
-
-#include "services/device/generic_sensor/platform_sensor_provider.h"
-#include "testing/gmock/include/gmock/gmock.h"
-
-namespace device {
-
-class FakePlatformSensorProvider : public PlatformSensorProvider {
- public:
-  FakePlatformSensorProvider();
-  ~FakePlatformSensorProvider() override;
-
-  MOCK_METHOD0(AllSensorsRemoved, void());
-
- protected:
-  void CreateSensorInternal(mojom::SensorType type,
-                            mojo::ScopedSharedBufferMapping mapping,
-                            const CreateSensorCallback& callback) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FakePlatformSensorProvider);
-};
-
-}  // namespace device
-
-#endif  // SERVICES_DEVICE_GENERIC_SENSOR_MOCK_PLATFORM_SENSOR_PROVIDER_H_