regulator: lp8788-buck: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/lp8788-buck.c

···
 	cfg.driver_data = buck;
 	cfg.regmap = lp->regmap;
 
-	rdev = regulator_register(&lp8788_buck_desc[id], &cfg);
+	rdev = devm_regulator_register(&pdev->dev, &lp8788_buck_desc[id], &cfg);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(&pdev->dev, "BUCK%d regulator register err = %d\n",
···
 	return 0;
 }
 
-static int lp8788_buck_remove(struct platform_device *pdev)
-{
-	struct lp8788_buck *buck = platform_get_drvdata(pdev);
-
-	regulator_unregister(buck->regulator);
-
-	return 0;
-}
-
 static struct platform_driver lp8788_buck_driver = {
 	.probe = lp8788_buck_probe,
-	.remove = lp8788_buck_remove,
 	.driver = {
 		.name = LP8788_DEV_BUCK,
 		.owner = THIS_MODULE,