Use menuconfig objects - CONFIG_ISDN_I4L

Remove a menu statement and several dependencies from the Kconfig files in
the drivers/isdn tree as they have become unnecessary by the transformation
of CONFIG_ISDN from "menu, config" into "menuconfig".
(Modified version of a patch originally proposed by Jan Engelhardt.)

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/isdn/icn/Kconfig b/drivers/isdn/icn/Kconfig
index fcb99f5..89d15ee 100644
--- a/drivers/isdn/icn/Kconfig
+++ b/drivers/isdn/icn/Kconfig
@@ -3,7 +3,7 @@
 #
 config ISDN_DRV_ICN
 	tristate "ICN 2B and 4B support"
-	depends on ISDN_I4L && ISA
+	depends on ISA
 	help
 	  This enables support for two kinds of ISDN-cards made by a German
 	  company called ICN.  2B is the standard version for a single ISDN