[ARM] Orion: delete unused IO_SPACE_REMAP define

This define isn't used anywhere in the kernel tree -- nuke it.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <linux@arm.linux.org.uk>

include/asm-arm/arch-orion5x/io.h

@@ -14,7 +14,6 @@
 #include "orion5x.h"
 
 #define IO_SPACE_LIMIT		0xffffffff
-#define IO_SPACE_REMAP		ORION5X_PCI_SYS_IO_BASE
 
 static inline void __iomem *
 __arch_ioremap(unsigned long paddr, size_t size, unsigned int mtype)