ASoC: codecs: rt1308-sdw: remove duplicate allocation

The .read_prop callback is supposed to be called by the SoundWire core
only. Calling it again from this driver results in an additional
memory allocation for no good reason.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200515211531.11416-4-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt1308-sdw.c

@@ -178,10 +178,6 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave)
 	if (rt1308->hw_init)
 		return 0;
 
-	ret = rt1308_read_prop(slave);
-	if (ret < 0)
-		goto _io_init_err_;
-
 	if (rt1308->first_hw_init) {
 		regcache_cache_only(rt1308->regmap, false);
 		regcache_cache_bypass(rt1308->regmap, true);
@@ -282,7 +278,6 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave)
 
 	dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
 
-_io_init_err_:
 	return ret;
 }