ARM: s3c: delete unneed local variable "delay"

"delay" variable on line 79 can be deleted by returning "0" on line 88.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210624055627.22295-1-wangborong@cdjrlc.com
Link: https://lore.kernel.org/r/20210818204422.17919-1-krzysztof.kozlowski@canonical.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-s3c/mach-gta02.c

@@ -79,13 +79,12 @@ static struct pcf50633 *gta02_pcf;
 
 static long gta02_panic_blink(int state)
 {
-	long delay = 0;
 	char led;
 
 	led = (state) ? 1 : 0;
 	gpio_direction_output(GTA02_GPIO_AUX_LED, led);
 
-	return delay;
+	return 0;
 }