MB-7250:  try signing with new certificate and no profile

Change-Id: I503fc2e3870f6ba040d1e89f814bd2cc6ee8c090
Reviewed-on: http://review.couchbase.org/41088
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>