CBQE-0 :: Remove Thread_stop occurance since this method does not exist

Change-Id: I5fd947c671c9406bfc815bba325161ae16930591
Reviewed-on: http://review.couchbase.org/38587
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Reviewed-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>