e1000: disable ERT

Hardware is reported to have problems with ERT. We disable it for
all hardware to make sure we are not seeing unexplainable user
problems.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

drivers/net/e1000/e1000_main.c

@@ -1806,9 +1806,6 @@ e1000_configure_rx(struct e1000_adapter *adapter)
 		E1000_WRITE_REG(hw, RXCSUM, rxcsum);
 	}
 
-	if (hw->mac_type == e1000_82573)
-		E1000_WRITE_REG(hw, ERT, 0x0100);
-
 	/* Enable Receives */
 	E1000_WRITE_REG(hw, RCTL, rctl);
 }