This patch removes supporting codes for s5pc100 because no more used
now.

[jason@lakedaemon.net: for drivers/irqchip/Kconfig]
Acked-by: NJason Cooper <jason@lakedaemon.net>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>