Don't install openstack-selinux in containers
Don't install openstack-selinux in containers

There's no use for selinux policies within container, container don't
manage selinux, all is on the host side.

Dropping this package will also drop container-selinux, and we should
get a faster build for the base image, since no selinux related task
should happen.

Change-Id: I7d7c47d32e50dad3d34959e8ce447f84957329ea

openstack/tripleo-common,openstack/tripleo-common