ASoC: Remove impossible case from wm8994_hw_params

We set hw_params callback for wm8994_aif3_dai_ops to wm8994_aif3_hw_params.
Thus no need to check wm8994-aif3 in wm8994_hw_params.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8994.c

@@ -2235,7 +2235,6 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
-	struct wm8994 *control = codec->control_data;
 	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 	int aif1_reg;
 	int aif2_reg;
@@ -2278,15 +2277,6 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
 			dev_dbg(codec->dev, "AIF2 using split LRCLK\n");
 		}
 		break;
-	case 3:
-		switch (control->type) {
-		case WM1811:
-		case WM8958:
-			aif1_reg = WM8958_AIF3_CONTROL_1;
-			break;
-		default:
-			return 0;
-		}
 	default:
 		return -EINVAL;
 	}