delete unused role/smokeping.pp

this is not used, instead we have modules/smokeping
and it's directly included on node netmon1001

if it were used, the Apache setup part should not be
in the role class (but now in the module in web.pp),
but it does conflicting things. f.e. there is no /srv/org/wikimedia
on netmon1001 at all and the .fcgi is in a different place

so.. just delete this

Change-Id: Iccd421b9c4ca1da8482bce4dd8cfa3821113cf0a
Merge "delete unused role/smokeping.pp" into production