Don't use AI_ADDRCONFIG hint

We want to get IPv4/6 addresses even if the local system currently has
no IPv4/6 address configured.

nameserv.c

@@ -56,9 +56,6 @@ DNS_Name2IPAddress(const char *name, IPAddr *addr)
   memset(&hints, 0, sizeof (hints));
   hints.ai_family = AF_UNSPEC;
   hints.ai_socktype = SOCK_STREAM;
-#ifdef AI_ADDRCONFIG
-  hints.ai_flags = AI_ADDRCONFIG;
-#endif
 
   result = getaddrinfo(name, NULL, &hints, &res);