power: supply: core: Remove unused power_supply_set_battery_charged

power_supply_set_battery_charged() has been unused since 2019's
commit 0f884f8 ("ARM: pxa: remove raumfeld board files and
defconfig")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250307230225.128775-2-linux@treblig.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Author: Dr. David Alan Gilbert

drivers/power/supply/power_supply_core.c

@@ -449,19 +449,6 @@ int power_supply_get_property_from_supplier(struct power_supply *psy,
 }
 EXPORT_SYMBOL_GPL(power_supply_get_property_from_supplier);
 
-int power_supply_set_battery_charged(struct power_supply *psy)
-{
-	if (atomic_read(&psy->use_cnt) >= 0 &&
-			psy->desc->type == POWER_SUPPLY_TYPE_BATTERY &&
-			psy->desc->set_charged) {
-		psy->desc->set_charged(psy);
-		return 0;
-	}
-
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(power_supply_set_battery_charged);
-
 static int power_supply_match_device_by_name(struct device *dev, const void *data)
 {
 	const char *name = data;

include/linux/power_supply.h

@@ -852,7 +852,6 @@ extern int power_supply_am_i_supplied(struct power_supply *psy);
 int power_supply_get_property_from_supplier(struct power_supply *psy,
 					    enum power_supply_property psp,
 					    union power_supply_propval *val);
-extern int power_supply_set_battery_charged(struct power_supply *psy);
 
 static inline bool
 power_supply_supports_maintenance_charging(struct power_supply_battery_info *info)