MB-100: removed unused poolid argument from checking_bucket_uuid

Change-Id: Ib3f4d19d4b83e825e402fef371757d60e4496b49
Reviewed-on: http://review.couchbase.org/27944
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>