mw-rc-irc - actually use the Apache class

we have the existing class mw-rc-irc::apache
which i changed in Id6dc414a9d08d0 to use
the new Apache setup

but it appears it was not actually used anywhere,
there was no change at all on argon

make it actually include this

Change-Id: I40470c847f2686e4877276a3e74db82628826c2d
Merge "mw-rc-irc - actually use the Apache class" into production