net: keystone_net: Remove non-DM_ETH code

As DM_ETH is required for all network drivers, it's now safe to
remove the non-DM_ETH support code.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/net/ti/keystone_net.c b/drivers/net/ti/keystone_net.c
index 1bdbd59..679a045 100644
--- a/drivers/net/ti/keystone_net.c
+++ b/drivers/net/ti/keystone_net.c
@@ -592,10 +592,8 @@
 	if (priv->has_mdio) {
 		priv->phydev = phy_connect(priv->mdio_bus, priv->phy_addr,
 					   dev, priv->phy_if);
-#ifdef CONFIG_DM_ETH
-	if (ofnode_valid(priv->phy_ofnode))
-		priv->phydev->node = priv->phy_ofnode;
-#endif
+		if (ofnode_valid(priv->phy_ofnode))
+			priv->phydev->node = priv->phy_ofnode;
 		phy_config(priv->phydev);
 	}