ASoC: Remove DSP mode support for WM8776

This is not supported by current hardware revisions.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Cc: stable@kernel.org

sound/soc/codecs/wm8776.c

@@ -178,13 +178,6 @@ static int wm8776_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	case SND_SOC_DAIFMT_LEFT_J:
 		iface |= 0x0001;
 		break;
-		/* FIXME: CHECK A/B */
-	case SND_SOC_DAIFMT_DSP_A:
-		iface |= 0x0003;
-		break;
-	case SND_SOC_DAIFMT_DSP_B:
-		iface |= 0x0007;
-		break;
 	default:
 		return -EINVAL;
 	}