gpio: moxart: remove unnecessary OOM messages

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <[e-mail]>
Reviewed-by: Javier Martinez Canillas <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-moxart.c

···
 	int ret;
 
 	mgc = devm_kzalloc(dev, sizeof(*mgc), GFP_KERNEL);
-	if (!mgc) {
-		dev_err(dev, "can't allocate GPIO chip container\n");
+	if (!mgc)
 		return -ENOMEM;
-	}
 	mgc->gpio = moxart_template_chip;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);