ata: sata_rcar: drop unused #define's

This driver has never used the SH-Navi2G/ATAPI-ATA compatible taskfile
registers (the driver uses the taskfile registers in another location
anyway), so drop their #define's...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/sata_rcar.c

@@ -18,10 +18,6 @@
 
 #define DRV_NAME "sata_rcar"
 
-/* SH-Navi2G/ATAPI-ATA compatible task registers */
-#define DATA_REG			0x100
-#define SDEVCON_REG			0x138
-
 /* SH-Navi2G/ATAPI module compatible control registers */
 #define ATAPI_CONTROL1_REG		0x180
 #define ATAPI_STATUS_REG		0x184