CBQE-0 stop running membase_uninstall

Change-Id: I1e3b4127b0c62d9c5ae9123c067bfaec738f8df8
Reviewed-on: http://review.couchbase.org/39689
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>