resolved right mtu variable and removed sharednetwork from network node

manifests/profile/neutron/router.pp

@@ -16,7 +16,7 @@ class iaas::profile::neutron::router (
   $region = hiera('iaas::region', undef),
   $endpoint = hiera('iaas::role::endpoint::main_address', undef),
 
-  $mtu = 1438,
+  $mtu = hiera('iaas::profile::neutron::router::mtu', 1438),
 
 ) {
 
@@ -315,8 +315,4 @@ notify { "br-ex2: $::brex2_eval":
     }
   }
 
-
-##Public/private network configuration for tenant - added
-class { '::iaas::setup::sharednetwork': }
-
 }