CBLT-198:  don't set params, let job do that

Change-Id: I0fb4f5f429c5c9efab978110f5b14bab0a3ae687
Reviewed-on: http://review.couchbase.org/34185
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>