Delete remaining leftover files in //device/geolocation

device/geolocation/wifi_data_provider_mac.h

-// Copyright (c) 2012 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 DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_
-#define DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_
-
-#include "base/macros.h"
-#include "device/geolocation/wifi_data_provider_common.h"
-
-namespace device {
-
-// Implementation of the wifi data provider for Mac OSX. Uses different API
-// bindings depending on APIs detected available at runtime in order to access
-// wifi scan data: Apple80211.h on OSX 10.5, CoreWLAN framework on OSX 10.6.
-class WifiDataProviderMac : public WifiDataProviderCommon {
- public:
-  WifiDataProviderMac();
-
- private:
-  ~WifiDataProviderMac() override;
-
-  // WifiDataProviderCommon
-  WlanApiInterface* NewWlanApi() override;
-  WifiPollingPolicy* NewPollingPolicy() override;
-
-  DISALLOW_COPY_AND_ASSIGN(WifiDataProviderMac);
-};
-
-// Creates and returns a new API binding for the CoreWLAN API, or NULL if the
-// API can not be initialized.
-WifiDataProviderCommon::WlanApiInterface* NewCoreWlanApi();
-
-} // namespace device
-
-#endif  // DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_MAC_H_