mfd: twl6030-irq: Delete an error message for a failed memory allocation in twl6030_init_irq()

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

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

drivers/mfd/twl6030-irq.c

@@ -392,10 +392,8 @@ int twl6030_init_irq(struct device *dev, int irq_num)
 	nr_irqs = TWL6030_NR_IRQS;
 
 	twl6030_irq = devm_kzalloc(dev, sizeof(*twl6030_irq), GFP_KERNEL);
-	if (!twl6030_irq) {
-		dev_err(dev, "twl6030_irq: Memory allocation failed\n");
+	if (!twl6030_irq)
 		return -ENOMEM;
-	}
 
 	mask[0] = 0xFF;
 	mask[1] = 0xFF;