net: enetc: remove interface checks in enetc_pl_mac_validate()

As phylink checks the interface mode against the supported_interfaces
bitmap, we no longer need to validate the interface mode in the
validation function. Remove this to simplify it.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/enetc/enetc_pf.c

@@ -936,16 +936,6 @@ static void enetc_pl_mac_validate(struct phylink_config *config,
 {
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
 
-	if (state->interface != PHY_INTERFACE_MODE_NA &&
-	    state->interface != PHY_INTERFACE_MODE_INTERNAL &&
-	    state->interface != PHY_INTERFACE_MODE_SGMII &&
-	    state->interface != PHY_INTERFACE_MODE_2500BASEX &&
-	    state->interface != PHY_INTERFACE_MODE_USXGMII &&
-	    !phy_interface_mode_is_rgmii(state->interface)) {
-		linkmode_zero(supported);
-		return;
-	}
-
 	phylink_set_port_modes(mask);
 	phylink_set(mask, Autoneg);
 	phylink_set(mask, Pause);