Revert "CBQE-2403:: fix condition for bad replicas check"

This reverts commit 4c1edb2fc48074f3ceb56dd464af42607e015ad8.

Change-Id: I31b3296c76d9a297f7a84fc4812efa0aa5eeb131
Reviewed-on: http://review.couchbase.org/41202
Reviewed-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: Parag Agarwal <agarwal.parag@gmail.com>