[ALSA] Skip ac97 SPDIF controls

CA0106 driver
Skip building ac97 SPDIF controls via AC97_SCAP_NO_SPDIF.
Clean up the code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ca0106/ca0106_main.c

@@ -810,6 +810,7 @@ static int snd_ca0106_ac97(ca0106_t *chip)
 
 	memset(&ac97, 0, sizeof(ac97));
 	ac97.private_data = chip;
+	ac97.scaps = AC97_SCAP_NO_SPDIF;
 	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 }
 

sound/pci/ca0106/ca0106_mixer.c

@@ -620,11 +620,6 @@ int __devinit snd_ca0106_mixer(ca0106_t *emu)
 		return -ENOMEM;
 	if ((err = snd_ctl_add(card, kctl)))
 		return err;
-	if ((kctl = ctl_find(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT))) != NULL) {
-		/* already defined by ac97, remove it */
-		/* FIXME: or do we need both controls? */
-		remove_ctl(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT));
-	}
 	if ((kctl = snd_ctl_new1(&snd_ca0106_spdif_control, emu)) == NULL)
 		return -ENOMEM;
 	if ((err = snd_ctl_add(card, kctl)))