Fix schema and template call for os.heat.stack profile
Fix schema and template call for os.heat.stack profile

The current code has an override version of 'get_schema()' call and an
useless 'get_template()' call which has been removed a while ago. This
patch removes them so that 'profile-type-schema' can work for heat stack
profiles.

Change-Id: Iee978f9c8fcdbbdeb63125b0aded16dc799fb292

Alzon/senlin,tengqm/senlin-container,stackforge/senlin,tengqm/senlin-container,openstack/senlin,stackforge/senlin,openstack/senlin,openstack/senlin,Alzon/senlin