[PATCH] ALSA: caiaq: Fix unused variable warning

[Takashi Iwai <tiwai@xxxxxxx>]

The recent cleanup of caiaq driver forgot to remove the unused loop
variable:
sound/usb/caiaq/audio.c: In function 'snd_usb_caiaq_pcm_prepare':
sound/usb/caiaq/audio.c:179:41: error: unused variable 'i' [-Werror=unused-variable]

Fixes: e95b9f7f2ee0 ("ALSA: snd-usb-caiaq: use snd_pcm_rate_to_rate_bit")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Closes: https://lore.kernel.org/20240809112252.5af8025f@xxxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 sound/usb/caiaq/audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index e62a4ea1d19c..772c0ecb7077 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -176,7 +176,7 @@ static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
 
 static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
 {
-	int bytes_per_sample, bpp, ret, i;
+	int bytes_per_sample, bpp, ret;
 	int index = substream->number;
 	struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream);
 	struct snd_pcm_runtime *runtime = substream->runtime;
-- 
2.43.0