varnish: remove .{wap,mobile}	. rewrites/redirects

These are now handled by Apache, via
I995fe573e7245ed03bff0109ee5d082cb1106d87, remove them from here.

This intentionally breaks URLs from the old Ruby gateway. Searches
across the web showed they are popular at all and the current rewrites
are already broken in most cases due to URL escaping of spaces.

Change-Id: I27afba1532bf0dd54e214d94ecd7fe136dfc3897