ASoC: codecs: wcd938x: drop bogus bind error handling

Drop the bogus error handling for a soundwire device backcast during
bind() that cannot fail.

Fixes: 1657252 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver")
Cc: stable@vger.kernel.org      # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20231003155558.27079-2-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: jhovold

sound/soc/codecs/wcd938x.c

@@ -3448,10 +3448,6 @@ static int wcd938x_bind(struct device *dev)
 	wcd938x->sdw_priv[AIF1_CAP] = dev_get_drvdata(wcd938x->txdev);
 	wcd938x->sdw_priv[AIF1_CAP]->wcd938x = wcd938x;
 	wcd938x->tx_sdw_dev = dev_to_sdw_dev(wcd938x->txdev);
-	if (!wcd938x->tx_sdw_dev) {
-		dev_err(dev, "could not get txslave with matching of dev\n");
-		return -EINVAL;
-	}
 
 	/* As TX is main CSR reg interface, which should not be suspended first.
 	 * expicilty add the dependency link */