Fix Redis bind setting to use redis_network

The Redis bind host should be set from [1] template.

1. https://github.com/openstack/tripleo-heat-templates/blob/master/puppet/controller-puppet.yaml#L985

Change-Id: I8713db1a7ad739692817921248edcc6b0e819ade

puppet/manifests/overcloud_controller_pacemaker.pp

@@ -109,7 +109,6 @@ if hiera('step') >= 1 {
 
   # Redis
   class { '::redis' :
-    bind           => '0.0.0.0',
     service_manage => false,
     notify_service => false,
   }