Updated openstack/openstack
Project: openstack/heat  f1220c377430ae82de208a6d46e641f0be2457c5

Remove unused functions from policy enforcer

The policy.Enforcer class has two functions which we don't use
anywhere, and the check function is broken due to an argument
mismatch with _check, so remove them until such time as they
are actually needed.

Change-Id: I25199fffeed5905b0673f137c70720ddb6dc48cb