mfd: max8997: Delete error message for a failed memory allocation

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

drivers/mfd/max8997.c

@@ -148,10 +148,8 @@ static struct max8997_platform_data *max8997_i2c_parse_dt_pdata(
 	struct max8997_platform_data *pd;
 
 	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
-	if (!pd) {
-		dev_err(dev, "could not allocate memory for pdata\n");
+	if (!pd)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	pd->ono = irq_of_parse_and_map(dev->of_node, 1);