This change removes the YAQL used to parse the rabbitmq cookie. This
will now use heat directly to conditionally extract the cookie as
needed.
Story: 2007973
Task: 40553
Task: 40554
Task: 40555
Task: 40556
Task: 40557
Task: 40559
Task: 40561
Task: 40562
Change-Id: I1873baab4325521dbcdc142462940ee3cf370c1b
Signed-off-by: Kevin Carter <kecarter@redhat.com>