[dev] [surf] Usual loop for non-reachable URI

Hi,

When loading a non-reachable URI, surf tries to load it a good number
of times before giving up. I doubt this is intended and it gets really
annoying as you have to browse back several times to reach the
previous page. This tiny patch solves this and removes two (legacy?)
unused pointers from the Client struct.

Regards,
Rafa.