ASoC: samsung: Use devm_snd_soc_register_card

Replace snd_soc_register_card with devm_snd_soc_register_card.
With this change, we can delete the empty remove functions.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c
index 57df90d..9902efc 100644
--- a/sound/soc/samsung/speyside.c
+++ b/sound/soc/samsung/speyside.c
@@ -327,23 +327,12 @@
 
 	card->dev = &pdev->dev;
 
-	ret = snd_soc_register_card(card);
-	if (ret) {
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 			ret);
-		return ret;
-	}
 
-	return 0;
-}
-
-static int speyside_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-
-	snd_soc_unregister_card(card);
-
-	return 0;
+	return ret;
 }
 
 static struct platform_driver speyside_driver = {
@@ -353,7 +342,6 @@
 		.pm = &snd_soc_pm_ops,
 	},
 	.probe = speyside_probe,
-	.remove = speyside_remove,
 };
 
 module_platform_driver(speyside_driver);