igc: Remove unused registers

Tx data FIFO Head/Tail, Saved and Packet Count registers
not applicable for i225 LAN controller.
This patch comes to clean up these registers.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/igc/igc_dump.c

@@ -35,10 +35,6 @@ static const struct igc_reg_info igc_reg_info_tbl[] = {
 	{IGC_TDH(0), "TDH"},
 	{IGC_TDT(0), "TDT"},
 	{IGC_TXDCTL(0), "TXDCTL"},
-	{IGC_TDFH, "TDFH"},
-	{IGC_TDFT, "TDFT"},
-	{IGC_TDFHS, "TDFHS"},
-	{IGC_TDFPC, "TDFPC"},
 
 	/* List Terminator */
 	{}

drivers/net/ethernet/intel/igc/igc_regs.h

@@ -17,11 +17,6 @@
 /* Internal Packet Buffer Size Registers */
 #define IGC_RXPBS		0x02404  /* Rx Packet Buffer Size - RW */
 #define IGC_TXPBS		0x03404  /* Tx Packet Buffer Size - RW */
-#define IGC_TDFH		0x03410  /* Tx Data FIFO Head - RW */
-#define IGC_TDFT		0x03418  /* Tx Data FIFO Tail - RW */
-#define IGC_TDFHS		0x03420  /* Tx Data FIFO Head Saved - RW */
-#define IGC_TDFTS		0x03428  /* Tx Data FIFO Tail Saved - RW */
-#define IGC_TDFPC		0x03430  /* Tx Data FIFO Packet Count - RW */
 
 /* NVM  Register Descriptions */
 #define IGC_EERD		0x12014  /* EEprom mode read - RW */