ASoC: SOF: nocodec: Drop empty platform remove function

A remove callback just returning 0 is equivalent to no remove callback
at all. So drop the useless function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20221212205406.3771071-16-u.kleine-koenig@pengutronix.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/nocodec.c

@@ -103,14 +103,8 @@ static int sof_nocodec_probe(struct platform_device *pdev)
 	return devm_snd_soc_register_card(&pdev->dev, card);
 }
 
-static int sof_nocodec_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 static struct platform_driver sof_nocodec_audio = {
 	.probe = sof_nocodec_probe,
-	.remove = sof_nocodec_remove,
 	.driver = {
 		.name = "sof-nocodec",
 		.pm = &snd_soc_pm_ops,