Remove openshift-enterprise-yum-validator.

openshift-enterprise-yum-validator is a tool that performs a pre-flight
check. The installer performs this test and in some cases the pkg is
not availble until the installer is run and registration is done.
The validator version param is unnecessary.

Change-Id: I95a3209ab38a562814bfea97c2ce2b445ca8135e
Tighten up security group port settings for broker and node.

Separate security groups were created for broker and node hosts.
Firewall rules follow documentation:
https://access.redhat.com/site/documentation/en-US/OpenShift_Enterprise\
/2/html/Deployment_Guide/Network_Access.html

Change-Id: If54f9b636e13679372bd566c8cc8dc6a08e4c7d2