hwmon: (tmp421) Remove duplicate return in switch-case

Use single read permission return in switch-case that handles
attributes in tmp421_is_visible().

Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Link: https://lore.kernel.org/r/20251111144406.7489-2-bruno.thomsen@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Author: baxeno

drivers/hwmon/tmp421.c

@@ -250,7 +250,6 @@ static umode_t tmp421_is_visible(const void *data, enum hwmon_sensor_types type,
 	switch (attr) {
 	case hwmon_temp_fault:
 	case hwmon_temp_input:
-		return 0444;
 	case hwmon_temp_label:
 		return 0444;
 	case hwmon_temp_enable: