media: ddbridge: remove unused MDIO defines and hwinfo member

ddbridge has a few MDIO related remainders (defines, hwinfo struct) which
aren't of any use for the in-kernel driver at all (they're only used in
conjunction with the OctoNet SAT>IP boxes which the kernel driver doesn't
have any support for), so clean this up.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/pci/ddbridge/ddbridge-regs.h

@@ -33,14 +33,6 @@
 #define GPIO_INPUT       0x24
 #define GPIO_DIRECTION   0x28
 
-/* ------------------------------------------------------------------------- */
-/* MDIO */
-
-#define MDIO_CTRL        0x20
-#define MDIO_ADR         0x24
-#define MDIO_REG         0x28
-#define MDIO_VAL         0x2C
-
 /* ------------------------------------------------------------------------- */
 
 #define BOARD_CONTROL    0x30

drivers/media/pci/ddbridge/ddbridge.h

@@ -127,7 +127,6 @@ struct ddb_info {
 	u8    temp_bus;
 	u32   board_control;
 	u32   board_control_2;
-	u8    mdio_num;
 	u8    con_clock; /* use a continuous clock */
 	u8    ts_quirks;
 #define TS_QUIRK_SERIAL   1