The great phx2 pruning run (1st cut).
Since we no longer have any machines in phx2, I have tried to remove
them from ansible. Note that there are still some places where we need
to remove them still: nagios, dhcp, named were not touched, and in cases
where it wasn't pretty clear what a conditional was doing I left it to
be cleaned up later.
Signed-off-by: Kevin Fenzi <kevin@scrye.com>