Enacting the log link creation and the ansible.cfg change has
resulted in polluted patch reviews by developers making use of
AIO's for dev/test purposes.
This patch moves the Ansible logging changes to the
gate-check-script only as that's the only time that it's
actually required.
Change-Id: I4a1accad94ae153bf363b53fda0905e814c15173
Closes-Bug: #1479824