ALSA: usb: Delete an error message for a failed memory allocation in two functions

Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index d7b0b0a..9db40d5 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -146,10 +146,9 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 	unsigned *rate_table = NULL;
 
 	fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
-	if (!fp) {
-		usb_audio_err(chip, "cannot memdup\n");
+	if (!fp)
 		return -ENOMEM;
-	}
+
 	INIT_LIST_HEAD(&fp->list);
 	if (fp->nr_rates > MAX_NR_RATES) {
 		kfree(fp);