The client test framework needs to be updated to handle !unsafe tags.
The remote tests need the following fixes:
* Remove the hostvars test since it was added to test that
setting ansible_python_interpreter as a job hostvar works, and we no
longer permit that.
* The variable freezing process causes gather_facts to run during the
freeze playbook, so these tasks no longer appear in the job results.
Change-Id: I5d5277b3f4cc3536f3ab18fb4775551281ee99f9
6a5df37586