Remove unused configuration items from tacker role
Remove unused configuration items from tacker role

New tacker has removed nova heat configure items,
but the tacker role is still using it.

In addition, the ceilometer and aodh are backend OpenStack
components, the configuration of feature in tacker does not depend
on them directly.

Change-Id: I475ff763475ed699a1e7498cc9898bd71d00ae7c
Closes-bug: 1718113

dardelean/kolla-ansible,dardelean/kolla-ansible,dardelean/kolla-ansible