Remove all deprecated hooks and tests.
Also since all test and hooks are removed,
we can remove the declare of python language in classifier.
Since we didn't actually provide any document,
we should remove docs too.
Hooks are maintained as Agents under heat-agents repo now.
Hooks in heat-templates are deprecated for a while. Hence, remove
hooks in heat-templates.
Depends-On: https://review.openstack.org/#/c/584774/
Change-Id: Ia886f71eaf99d75db0f9a6a7dfbe8664995c26e7
Providing a setup cofiguration file can be a benifit for systems
that want to install this files using pip as a package manager.
Change-Id: Ida7f9142147d3cf88076f97a348c3e5ffff0259a
ricolin