[Libvir] 7/22 no uid_t / getuid

There is no uid_t or getuid in MinGW. I'm not really sure that forcing connections readonly if the user is non-root is a useful thing to be doing anyway, so perhaps this code is better off just being deleted? Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903