pata_arasan_cf: Delete an error message for a failed memory allocation in arasan_cf_probe()

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: Tejun Heo <tj@kernel.org>

drivers/ata/pata_arasan_cf.c

@@ -809,10 +809,8 @@ static int arasan_cf_probe(struct platform_device *pdev)
 	}
 
 	acdev = devm_kzalloc(&pdev->dev, sizeof(*acdev), GFP_KERNEL);
-	if (!acdev) {
-		dev_warn(&pdev->dev, "kzalloc fail\n");
+	if (!acdev)
 		return -ENOMEM;
-	}
 
 	if (pdata)
 		quirk = pdata->quirk;