ASoC: wm8994: Remove restore of DAC enable state

It's not been needed since the regmap conversion.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8994.c

@@ -3131,22 +3131,6 @@ static int wm8994_codec_resume(struct snd_soc_codec *codec)
 	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 	struct wm8994 *control = wm8994->wm8994;
 	int i, ret;
-	unsigned int val, mask;
-
-	if (control->revision < 4) {
-		/* force a HW read */
-		ret = regmap_read(control->regmap,
-				  WM8994_POWER_MANAGEMENT_5, &val);
-
-		/* modify the cache only */
-		codec->cache_only = 1;
-		mask =  WM8994_DAC1R_ENA | WM8994_DAC1L_ENA |
-			WM8994_DAC2R_ENA | WM8994_DAC2L_ENA;
-		val &= mask;
-		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
-				    mask, val);
-		codec->cache_only = 0;
-	}
 
 	for (i = 0; i < ARRAY_SIZE(wm8994->fll); i++) {
 		if (!wm8994->fll_suspend[i].out)