remoteproc: qcom_q6v5_wcss: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230504194453.1150368-13-u.kleine-koenig@pengutronix.de
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

Author: Uwe Kleine-König

drivers/remoteproc/qcom_q6v5_wcss.c

@@ -1074,16 +1074,14 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int q6v5_wcss_remove(struct platform_device *pdev)
+static void q6v5_wcss_remove(struct platform_device *pdev)
 {
 	struct rproc *rproc = platform_get_drvdata(pdev);
 	struct q6v5_wcss *wcss = rproc->priv;
 
 	qcom_q6v5_deinit(&wcss->q6v5);
 	rproc_del(rproc);
 	rproc_free(rproc);
-
-	return 0;
 }
 
 static const struct wcss_data wcss_ipq8074_res_init = {
@@ -1117,7 +1115,7 @@ MODULE_DEVICE_TABLE(of, q6v5_wcss_of_match);
 
 static struct platform_driver q6v5_wcss_driver = {
 	.probe = q6v5_wcss_probe,
-	.remove = q6v5_wcss_remove,
+	.remove_new = q6v5_wcss_remove,
 	.driver = {
 		.name = "qcom-q6v5-wcss-pil",
 		.of_match_table = q6v5_wcss_of_match,