MB-12251: Comment out not yet working tests

Change-Id: Ibe966fd4477a33c3df3b77bdd6299f779bf9417a
Reviewed-on: http://review.couchbase.org/43853
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>