setting obj.prefetch

[Tollef Fog Heen]

]] Eran Sandler 

| Prior to Varnish 2.1 I was able to set the obj.prefetch in the vcl_fetch
| function so that for different items being fetched I have a different
| prefetch time.
| I'm not sure if that was the correct place for Varnish prior to 2.1 but it
| worked.

obj.prefetch has never actually done anything, so just remove the
setting of it.

-- 
Tollef Fog Heen
Varnish Software
t: +47 21 54 41 73