net: ethernet: ezchip: fix platform_get_irq.cocci warning

Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.

Generated by: scripts/coccinelle/api/platform_get_irq.cocci
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ezchip/nps_enet.c

@@ -608,7 +608,6 @@ static s32 nps_enet_probe(struct platform_device *pdev)
 	/* Get IRQ number */
 	priv->irq = platform_get_irq(pdev, 0);
 	if (priv->irq < 0) {
-		dev_err(dev, "failed to retrieve <irq Rx-Tx> value from device tree\n");
 		err = -ENODEV;
 		goto out_netdev;
 	}