Remove concat::setup for include

Since the class is now throwing an error when you use the class directly,
I'm just removing it.

We left this in from the last rewrite as someone reported an issue a long
time ago, but alas we have been unable to prove its a problem.

Signed-off-by: Ken Barber <ken@bob.sh>

manifests/server/config.pp

@@ -23,7 +23,6 @@ class postgresql::server::config {
 
     if ($manage_pg_hba_conf == true) {
       # Prepare the main pg_hba file
-      include concat::setup
       concat { $pg_hba_conf_path:
         owner  => 0,
         group  => $group,