Remove two more deprecated methods from SocketAddress API.

webrtc/base/socketaddress.cc

Index: webrtc/base/socketaddress.cc
diff --git a/webrtc/base/socketaddress.cc b/webrtc/base/socketaddress.cc
index 3f13c385a961da2b3df892400842f88b9ce66de1..79ede801814421c76cb2c9fd68df7054ddfe2032 100644
--- a/webrtc/base/socketaddress.cc
+++ b/webrtc/base/socketaddress.cc
@@ -307,14 +307,6 @@ size_t SocketAddress::ToSockAddrStorage(sockaddr_storage* addr) const {
   return ToSockAddrStorageHelper(addr, ip_, port_, scope_id_);
 }
 
-std::string SocketAddress::IPToString(uint32_t ip_as_host_order_integer) {
-  return IPAddress(ip_as_host_order_integer).ToString();
-}
-
-std::string IPToSensitiveString(uint32_t ip_as_host_order_integer) {
-  return IPAddress(ip_as_host_order_integer).ToSensitiveString();
-}
-
 bool SocketAddress::StringToIP(const std::string& hostname, uint32_t* ip) {
   in_addr addr;
   if (rtc::inet_pton(AF_INET, hostname.c_str(), &addr) == 0)