regulator: tps80031: remove redundant assignment to variables ret and val

The variables ret and val are being initialized with values that are
never read and are being updated later with a new value. The
initializations are redundant and can be removed.

Signed-off-by: Colin Ian King <[e-mail]>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/tps80031-regulator.c

···
 {
 	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
 	struct device *parent = to_tps80031_dev(rdev);
-	int ret = -EIO;
+	int ret;
 	uint8_t ctrl1 = 0;
 	uint8_t ctrl3 = 0;
 
···
 {
 	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
 	struct device *parent = to_tps80031_dev(rdev);
-	int ret = 0;
+	int ret;
 
 	if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) {
 		ret = tps80031_write(parent, TPS80031_SLAVE_ID2,
···
 	case TPS80031_REGULATOR_LDOUSB:
 		if (ri->config_flags & (TPS80031_USBLDO_INPUT_VSYS |
 			TPS80031_USBLDO_INPUT_PMID)) {
-			unsigned val = 0;
+			unsigned val;
+
 			if (ri->config_flags & TPS80031_USBLDO_INPUT_VSYS)
 				val = MISC2_LDOUSB_IN_VSYS;
 			else