Run cloudtier tests with parameter 'retain_head_object'
set to true and false.
However having multiple cloudtier storage classes in the same task
is increasing the transition time and resulting in spurious failures.
Hence until there is a consistent way of running the tests, without
having to depend on lc_debug_interval, disabled one of the config for
now.
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
