drivers/net: get rid of unnecessary initializations in .get_drvinfo()

Many drivers initialize uselessly n_priv_flags, n_stats, testinfo_len,
eedump_len & regdump_len fields in their .get_drvinfo() ethtool op.
It's not necessary as these fields is filled in ethtool_get_drvinfo().

v2: removed unused variable
v3: removed another unused variable

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/8139too.c

@@ -2388,7 +2388,6 @@ static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *
 	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 	strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 	strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
-	info->regdump_len = tp->regs_len;
 }
 
 static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)