ASoC: tas2770: Remove unneeded read of the TDM_CFG3 register

Remove the unneeded and incorrect read of the TDM_CFG3 register.
The read is done but the value is never used.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20191007171157.17813-2-dmurphy@ti.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tas2770.c

@@ -374,7 +374,6 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
 	int ret;
-	int value = 0;
 	struct snd_soc_component *component = dai->component;
 	struct tas2770_priv *tas2770 =
 			snd_soc_component_get_drvdata(component);
@@ -430,8 +429,6 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	if (ret)
 		return ret;
 
-	value = snd_soc_component_read32(component, TAS2770_TDM_CFG_REG3);
-
 	tas2770->asi_format = fmt;
 
 	return 0;