pwm: pwm-tipwmss: remove unnecessary OOM messages

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message. The following
checkpatch warning is also removed.

  WARNING: Possible unnecessary 'out of memory' message
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-tipwmss.c

@@ -62,10 +62,8 @@ static int pwmss_probe(struct platform_device *pdev)
 	struct device_node *node = pdev->dev.of_node;
 
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
 
 	mutex_init(&info->pwmss_lock);