ixgbe: Removing the unused PAGE_USE_COUNT() macro.

Removing the unused PAGE_USE_COUNT() macro. Also removing the unused
pages variable at ixgbe_configure_rx() function.
Signed-off-by: Breno Leitão <leitao@linux.vnet.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ixgbe/ixgbe_main.c

@@ -1553,9 +1553,6 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl);
 }
 
-#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
-                           (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
-
 /**
  * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset
  * @adapter: board private structure
@@ -1574,7 +1571,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
 	                  0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE,
 	                  0x6A3E67EA, 0x14364D17, 0x3BED200D};
 	u32 fctrl, hlreg0;
-	u32 pages;
 	u32 reta = 0, mrqc;
 	u32 rdrxctl;
 	int rx_buf_len;
@@ -1604,8 +1600,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
 		hlreg0 |= IXGBE_HLREG0_JUMBOEN;
 	IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
 
-	pages = PAGE_USE_COUNT(adapter->netdev->mtu);
-
 	rdlen = adapter->rx_ring[0].count * sizeof(union ixgbe_adv_rx_desc);
 	/* disable receives while setting up the descriptors */
 	rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);