[ARM] MINI2440: Cleanup duplicated header includes

Remove duplicate mach headers for gpio.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

arch/arm/mach-s3c2440/mach-mini2440.c

@@ -49,9 +49,6 @@
 #include <plat/udc.h>
 
 #include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
-#include <mach/regs-mem.h>
-#include <mach/regs-lcd.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>