InstanceNameTemplate parameter doesn't configure compute nodes

[Christopher Brown]

The InstanceNameTemplate does not configure on compute nodes and therefore does not work.

Steps to Reproduce:
1. Deploy with this parameter
2. Observe controllers configured but not computes
3. Observe instance-* naming convention still in use

Actual results:

Run virsh list and you see:

[root@compute heat-admin]# virsh list
 Id Name State
----------------------------------------------------
 1 instance-00000002 running

Expected results:

[root@compute heat-admin]# virsh list
 Id Name State
----------------------------------------------------
 2 server2 running

[OpenStack Infra (hudson-openstack)]

Change abandoned by Christopher Brown (<email address hidden>) on branch: master
Review: https://review.openstack.org/577869
Reason: we can use nova_config for this, no need for specific parameter and too dicey to create one I think.