CBQE-0: remove command.format(command)

don't know what it means but seems like copy-paste

Change-Id: Ia1b942cf0c9de9632af02cf9f631902f2e41b53c
Reviewed-on: http://review.couchbase.org/31540
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>