extcon: 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>
[Acked by Charles Keepax for arizona part]
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 042bf742..77460f2 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1099,10 +1099,9 @@
 
 	info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_muic_info),
 				   GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
+
 	info->dev = &pdev->dev;
 	info->max77693 = max77693;
 	if (info->max77693->regmap_muic) {