bytestream-socks5: stub out get_local_interfaces_ips() on Windows
bytestream-socks5: stub out get_local_interfaces_ips() on Windows

Returning NULL seems to be handled correctly in the code that calls this
function, so that's a safe thing to do; SOCKS5 just won't work.

mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble,jku/telepathy-gabble,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble,Ziemin/telepathy-gabble