power: supply: pm2301: drop duplicated i2c_device_id

The driver defines two of 'struct i2c_device_id' but uses only one:

  drivers/power/supply/pm2301_charger.c:107:35: warning:
    'pm2xxx_ident' defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/pm2301_charger.c

@@ -104,11 +104,6 @@ static int pm2xxx_charger_current_map[] = {
 	3000,
 };
 
-static const struct i2c_device_id pm2xxx_ident[] = {
-	{ "pm2301", 0 },
-	{ }
-};
-
 static void set_lpn_pin(struct pm2xxx_charger *pm2)
 {
 	if (!pm2->ac.charger_connected && gpio_is_valid(pm2->lpn_pin)) {