Remove pki_restart_configured_instance
The pki_restart_configured_instance param is no longer used
by pkispawn so it has been removed.
https://github.com/dogtagpki/pki/blob/master/docs/changes/v11.3.0/Server-Changes.adoc
Signed-off-by: Endi S. Dewata <edewata@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>