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

services/device/generic_sensor/platform_sensor_provider_mac.h

Index: services/device/generic_sensor/platform_sensor_provider_mac.h
diff --git a/services/device/generic_sensor/platform_sensor_provider_mac.h b/services/device/generic_sensor/platform_sensor_provider_mac.h
deleted file mode 100644
index 809a4f21609e1c3fb1c6f9296209ffe75e80f072..0000000000000000000000000000000000000000
--- a/services/device/generic_sensor/platform_sensor_provider_mac.h
+++ /dev/null
@@ -1,30 +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_PLATFORM_SENSOR_PROVIDER_MAC_H_
-#define SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_MAC_H_
-
-#include "services/device/generic_sensor/platform_sensor_provider.h"
-
-namespace device {
-
-class PlatformSensorProviderMac : public PlatformSensorProvider {
- public:
-  PlatformSensorProviderMac();
-  ~PlatformSensorProviderMac() override;
-
-  static PlatformSensorProviderMac* GetInstance();
-
- protected:
-  void CreateSensorInternal(mojom::SensorType type,
-                            mojo::ScopedSharedBufferMapping mapping,
-                            const CreateSensorCallback& callback) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(PlatformSensorProviderMac);
-};
-
-}  // namespace device
-
-#endif  // SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_MAC_H_