net: phy: sfp: clean up a condition

The acpi_node_get_property_reference() doesn't return ACPI error codes,
it just returns regular negative kernel error codes.  This patch doesn't
affect run time, it's just a clean up.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ruslan Babayev <ruslan@babayev.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/sfp.c

@@ -1848,7 +1848,7 @@ static int sfp_probe(struct platform_device *pdev)
 		int ret;
 
 		ret = acpi_node_get_property_reference(fw, "i2c-bus", 0, &args);
-		if (ACPI_FAILURE(ret) || !is_acpi_device_node(args.fwnode)) {
+		if (ret || !is_acpi_device_node(args.fwnode)) {
 			dev_err(&pdev->dev, "missing 'i2c-bus' property\n");
 			return -ENODEV;
 		}