power: supply: max14577: remove unneeded variable initialization

The local 'current_bits' variable does not have to be initialized
because all cases in following switch() either return or initialize it.

Addresses-Coverity: Unused value
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/max14577_charger.c

@@ -261,7 +261,7 @@ static int max14577_init_constant_voltage(struct max14577_charger *chg,
 static int max14577_init_eoc(struct max14577_charger *chg,
 		unsigned int uamp)
 {
-	unsigned int current_bits = 0xf;
+	unsigned int current_bits;
 	u8 reg_data;
 
 	switch (chg->max14577->dev_type) {