ASoC: blackfin: Delete an error message for a failed memory allocation in sport_create()

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: Mark Brown <broonie@kernel.org>

sound/soc/blackfin/bf6xx-sport.c

@@ -388,10 +388,9 @@ struct sport_device *sport_create(struct platform_device *pdev)
 	int ret;
 
 	sport = kzalloc(sizeof(*sport), GFP_KERNEL);
-	if (!sport) {
-		dev_err(dev, "Unable to allocate memory for sport device\n");
+	if (!sport)
 		return NULL;
-	}
+
 	sport->pdev = pdev;
 
 	ret = sport_get_resource(sport);