chromeos: Remove unused CrosAddIPConfig/CrosRemoveIPConfig functions

chrome/browser/chromeos/cros/cros_network_functions.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 CHROME_BROWSER_CHROMEOS_CROS_CROS_NETWORK_FUNCTIONS_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_CROS_NETWORK_FUNCTIONS_H_
 
 // This header is introduced to make it easy to switch from chromeos_network.cc
 // to Chrome's own DBus code.  crosbug.com/16557
 // All calls to functions in chromeos_network.h should be made through
@@ skipping 254 matching lines @@
 
 // Gets a list of all the NetworkIPConfigs using a given device path.
 // Optionally, you can get ipconfig-paths and the hardware address.
 // Pass NULL as |ipconfig_paths| and |hardware_address| if you are not
 // interested in these values.
 bool CrosListIPConfigs(const std::string& device_path,
                        NetworkIPConfigVector* ipconfig_vector,
                        std::vector<std::string>* ipconfig_paths,
                        std::string* hardware_address);
 
-// Adds a IPConfig of the given type to the device
-bool CrosAddIPConfig(const std::string& device_path, IPConfigType type);
-
-// Removes an existing IP Config
-bool CrosRemoveIPConfig(const std::string& ipconfig_path);
-
 // Refreshes the IP config |ipconfig_path| to pick up changes in
 // configuration, and renew the DHCP lease, if any.
 void CrosRequestIPConfigRefresh(const std::string& ipconfig_path);
 
 // Reads out the results of the last wifi scan. These results are not
 // pre-cached in the library, so the call may block whilst the results are
 // read over IPC.
 // Returns false if an error occurred in reading the results. Note that
 // a true return code only indicates the result set was successfully read,
 // it does not imply a scan has successfully completed yet.
@@ skipping 12 matching lines @@
 int32 CrosNetmaskToPrefixLength(const std::string& netmask);
 
 // Changes the active cellular carrier.
 void CrosSetCarrier(const std::string& device_path,
                     const std::string& carrier,
                     const NetworkOperationCallback& callback);
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_CROS_NETWORK_FUNCTIONS_H_