The ->notify_ha_event() hook has long been removed from the libsas event
interface.
Remove it from documentation.
Fixes: 042ebd293b86 ("scsi: libsas: kill useless ha_event and do some cleanup")
Signed-off-by: Ahmed S. Darwish<a.darwish@xxxxxxxxxxxxx>
Cc:stable@xxxxxxxxxxxxxxx
Cc: John Garry<john.garry@xxxxxxxxxx>
Cc: Jason Yan<yanaijie@xxxxxxxxxx>