ORIGEN: remove duplicated MACH_TYPE define

Since MACH_TYPE_ORIGEN is updated on mach-types,
remove the MACH_TYPE_ORIGEN on config file.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Cc: Chander Kashyap <chander.kashyap@linaro.org>

include/configs/origen.h

@@ -52,8 +52,6 @@
 #define CONFIG_INITRD_TAG
 #define CONFIG_CMDLINE_EDITING
 
-/* MACH_TYPE_ORIGEN macro will be removed once added to mach-types */
-#define MACH_TYPE_ORIGEN		3455
 #define CONFIG_MACH_TYPE		MACH_TYPE_ORIGEN
 
 /* Power Down Modes */