mvneta: drop redundant mac address check

Checking if MAC address is valid using is_valid_ether_addr() is already done in
of_get_mac_address().
Signed-off-by: NLuka Perkov <luka@openwrt.org>
Acked-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvneta.c

@@ -2811,7 +2811,7 @@ static int mvneta_probe(struct platform_device *pdev)
 	}
 
 	dt_mac_addr = of_get_mac_address(dn);
-	if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
+	if (dt_mac_addr) {
 		mac_from = "device tree";
 		memcpy(dev->dev_addr, dt_mac_addr, ETH_ALEN);
 	} else {