net: sxgbe: remove duplicate SXGBE_CORE_L34_ADDCTL_REG define

The SXGBE_CORE_L34_ADDCTL_REG define is cut and pasted twice so we can
delete the second instance.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/samsung/sxgbe/sxgbe_reg.h

@@ -188,7 +188,6 @@
 
 /* L3/L4 function registers */
 #define SXGBE_CORE_L34_ADDCTL_REG	0x0C00
-#define SXGBE_CORE_L34_ADDCTL_REG	0x0C00
 #define SXGBE_CORE_L34_DATA_REG		0x0C04
 
 /* ARP registers */