ASoC: sun4i-codec: Remove unneeded gpiod NULL check

The gpiod API checks for NULL descriptors, so there is no need to
duplicate the check in the driver.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sunxi/sun4i-codec.c

@@ -1171,7 +1171,6 @@ static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
 {
 	struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card);
 
-	if (scodec->gpio_pa)
 	gpiod_set_value_cansleep(scodec->gpio_pa,
 				 !!SND_SOC_DAPM_EVENT_ON(event));