e1000e: enable EEE by default

Now that IEEE802.3az-2010 Energy Efficient Ethernet has been approved as
standard (September 2010) and the driver can enable and disable it via
ethtool, enable the feature by default on parts which support it.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NJeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/e1000e/ich8lan.c

@@ -1034,10 +1034,6 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
 	    (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
 		adapter->flags2 |= FLAG2_PCIM2PCI_ARBITER_WA;
 
-	/* Disable EEE by default until IEEE802.3az spec is finalized */
-	if (adapter->flags2 & FLAG2_HAS_EEE)
-		adapter->hw.dev_spec.ich8lan.eee_disable = true;
-
 	return 0;
 }