ASoC: amd: 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>
Link: https://lore.kernel.org/r/20221212205406.3771071-3-u.kleine-koenig@pengutronix.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/raven/acp3x-i2s.c

@@ -315,16 +315,8 @@ static int acp3x_dai_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int acp3x_dai_remove(struct platform_device *pdev)
-{
-	/* As we use devm_ memory alloc there is nothing TBD here */
-
-	return 0;
-}
-
 static struct platform_driver acp3x_dai_driver = {
 	.probe = acp3x_dai_probe,
-	.remove = acp3x_dai_remove,
 	.driver = {
 		.name = "acp3x_i2s_playcap",
 	},