s390: iucv Kconfig help description changes

[PATCH 4/5] s390: iucv Kconfig help description changes

From: Ursula Braun <braunu@de.ibm.com>
        remove text from help description which does not
	apply anymore for 2.6 kernel series.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>