sp: remove unused recoveryMode from spmStart

Change-Id: I4be0a2aad270e87cf6a83f8b1fd36d928312104e
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/21556
Reviewed-by: Ayal Baron <abaron@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>