atl1c: remove HDS register

remove HDS register as it doesn't exist in hardware.
Signed-off-by: Nxiong <xiong@qca.qualcomm.com>
Tested-by: NLiu David <dwliu@qca.qualcomm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/atheros/atl1c/atl1c_hw.h

@@ -669,13 +669,6 @@ int atl1c_phy_power_saving(struct atl1c_hw *hw);
 #define REG_INT_RETRIG_TIMER		0x1608
 #define INT_RETRIG_TIMER_MASK		0xFFFF
 
-#define REG_HDS_CTRL			0x160C
-#define HDS_CTRL_EN			0x0001
-#define HDS_CTRL_BACKFILLSIZE_SHIFT	8
-#define HDS_CTRL_BACKFILLSIZE_MASK	0x0FFF
-#define HDS_CTRL_MAX_HDRSIZE_SHIFT	20
-#define HDS_CTRL_MAC_HDRSIZE_MASK	0x0FFF
-
 #define REG_MAC_RX_STATUS_BIN 		0x1700
 #define REG_MAC_RX_STATUS_END 		0x175c
 #define REG_MAC_TX_STATUS_BIN 		0x1760

drivers/net/ethernet/atheros/atl1c/atl1c_main.c

@@ -1453,8 +1453,6 @@ static int atl1c_configure(struct atl1c_adapter *adapter)
 	/* set MTU */
 	AT_WRITE_REG(hw, REG_MTU, hw->max_frame_size + ETH_HLEN +
 			VLAN_HLEN + ETH_FCS_LEN);
-	/* HDS, disable */
-	AT_WRITE_REG(hw, REG_HDS_CTRL, 0);
 
 	atl1c_configure_tx(adapter);
 	atl1c_configure_rx(adapter);