ASoC: rt5677: Use devm_snd_soc_register_component()

Using devm_snd_soc_register_component() can make the code
shorter and cleaner.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200507094335.14302-1-weiyongjun1@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5677-spi.c

@@ -605,7 +605,8 @@ static int rt5677_spi_probe(struct spi_device *spi)
 
 	g_spi = spi;
 
-	ret = snd_soc_register_component(&spi->dev, &rt5677_spi_dai_component,
+	ret = devm_snd_soc_register_component(&spi->dev,
+					      &rt5677_spi_dai_component,
 					      &rt5677_spi_dai, 1);
 	if (ret < 0)
 		dev_err(&spi->dev, "Failed to register component.\n");
@@ -613,12 +614,6 @@ static int rt5677_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int rt5677_spi_remove(struct spi_device *spi)
-{
-	snd_soc_unregister_component(&spi->dev);
-	return 0;
-}
-
 static const struct acpi_device_id rt5677_spi_acpi_id[] = {
 	{ "RT5677AA", 0 },
 	{ }
@@ -631,7 +626,6 @@ static struct spi_driver rt5677_spi_driver = {
 		.acpi_match_table = ACPI_PTR(rt5677_spi_acpi_id),
 	},
 	.probe = rt5677_spi_probe,
-	.remove = rt5677_spi_remove,
 };
 module_spi_driver(rt5677_spi_driver);