pcmcia: remove per-arch PCMCIA config entry

Now that all architectures include drivers/pcmcia/Kconfig where
the PCMCIA config is defined, the PCMCIA config entries in per-arch
Kconfig files are redundant.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>

arch/s390/Kconfig

@@ -828,9 +828,6 @@ source "kernel/power/Kconfig"
 
 endmenu
 
-config PCMCIA
-	def_bool n
-
 config CCW
 	def_bool y
 

arch/um/Kconfig

@@ -31,9 +31,6 @@ config ISA
 config SBUS
 	bool
 
-config PCMCIA
-	bool
-
 config TRACE_IRQFLAGS_SUPPORT
 	bool
 	default y