Delete remaining leftover files in //device/geolocation

device/geolocation/wifi_data_provider_linux.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_LINUX_H_
-#define DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_LINUX_H_
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "device/geolocation/geolocation_export.h"
-#include "device/geolocation/wifi_data_provider_common.h"
-
-namespace dbus {
-class Bus;
-};
-
-namespace device {
-
-class DEVICE_GEOLOCATION_EXPORT WifiDataProviderLinux
-    : public WifiDataProviderCommon {
- public:
-  WifiDataProviderLinux();
-
- private:
-  friend class GeolocationWifiDataProviderLinuxTest;
-
-  ~WifiDataProviderLinux() override;
-
-  // WifiDataProviderCommon
-  WlanApiInterface* NewWlanApi() override;
-  WifiPollingPolicy* NewPollingPolicy() override;
-
-  // For testing.
-  WlanApiInterface* NewWlanApiForTesting(dbus::Bus* bus);
-
-  DISALLOW_COPY_AND_ASSIGN(WifiDataProviderLinux);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_GEOLOCATION_WIFI_DATA_PROVIDER_LINUX_H_