leds: lt3593: Remove unneeded assignment in lt3593_led_probe

As the chip can't be queried for it's current state, the "keep" option
doesn't make sense. The only option in DT should be turn the LED on or
off at probe time. Also 'flags' is never used since introduction.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

drivers/leds/leds-lt3593.c

@@ -66,7 +66,6 @@ static int lt3593_led_probe(struct platform_device *pdev)
 	struct lt3593_led_data *led_data;
 	struct fwnode_handle *child;
 	int ret, state = LEDS_GPIO_DEFSTATE_OFF;
-	enum gpiod_flags flags = GPIOD_OUT_LOW;
 	const char *tmp;
 
 	if (!dev->of_node)
@@ -99,13 +98,8 @@ static int lt3593_led_probe(struct platform_device *pdev)
 				    &led_data->cdev.default_trigger);
 
 	if (!fwnode_property_read_string(child, "default-state", &tmp)) {
-		if (!strcmp(tmp, "keep")) {
-			state = LEDS_GPIO_DEFSTATE_KEEP;
-			flags = GPIOD_ASIS;
-		} else if (!strcmp(tmp, "on")) {
+		if (!strcmp(tmp, "on"))
 			state = LEDS_GPIO_DEFSTATE_ON;
-			flags = GPIOD_OUT_HIGH;
-		}
 	}
 
 	led_data->cdev.name = led_data->name;