Remove deprecated IsUnresolved() method from SocketAddress API.

webrtc/base/socketaddress.h

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 123 matching lines @@
   // For v6 addresses this means the address is ::1.
   bool IsLoopbackIP() const;
 
   // Determines whether the IP address is in one of the private ranges:
   // For v4: 127.0.0.0/8 10.0.0.0/8 192.168.0.0/16 172.16.0.0/12.
   // For v6: FE80::/16 and ::1.
   bool IsPrivateIP() const;
 
   // Determines whether the hostname has been resolved to an IP.
   bool IsUnresolvedIP() const;
-  inline bool IsUnresolved() const { return IsUnresolvedIP(); }  // deprecated
 
   // Determines whether this address is identical to the given one.
   bool operator ==(const SocketAddress& addr) const;
   inline bool operator !=(const SocketAddress& addr) const {
     return !this->operator ==(addr);
   }
 
   // Compares based on IP and then port.
   bool operator <(const SocketAddress& addr) const;
 
@@ skipping 40 matching lines @@
   bool literal_;  // Indicates that 'hostname_' contains a literal IP string.
 };
 
 bool SocketAddressFromSockAddrStorage(const sockaddr_storage& saddr,
                                       SocketAddress* out);
 SocketAddress EmptySocketAddressWithFamily(int family);
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_SOCKETADDRESS_H_