Remove per-region handling

Since vanilla and chocolate are on the same VLAN, we don't have
two different bifrost machines, just one to handle both.
Therefore, the per-region split logic is not needed anymore and makes
it impossible to have on the current baremetal machine in prod
having both inventories at the same time.

Note: I'm leaving the 'region' parameter on purpose, otherwise
the apply tests fail.
Will remove it in a subsequent patch.

Change-Id: I433cdb8675c3acd2e699272aaf6a0e67eb9200b0

manifests/bifrost.pp

@@ -18,7 +18,7 @@ class infracloud::bifrost (
   $ironic_db_password,
   $ironic_inventory,
   $mysql_password,
-  $region,
+  $region = 'vanilla',
   $ssh_private_key,
   $ssh_public_key,
   $vlan,
@@ -62,12 +62,12 @@ class infracloud::bifrost (
 
   file { '/etc/bifrost/bifrost_global_vars':
     ensure  => present,
-    content => template("infracloud/bifrost/bifrost_global_vars.${region}.erb"),
+    content => template('infracloud/bifrost/bifrost_global_vars.erb'),
   }
 
   file { '/opt/stack/baremetal.json':
     ensure  => file,
-    content => template("infracloud/bifrost/inventory.${region}.json.erb"),
+    content => template('infracloud/bifrost/inventory.json.erb'),
     require => Vcsrepo['/opt/stack/bifrost'],
   }