[ARM] pxa/magician: remove unused forward declaration of pasic3

Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NEric Miao <eric.miao@marvell.com>

arch/arm/mach-pxa/magician.c

@@ -483,8 +483,6 @@ static struct pasic3_led pasic3_leds[] = {
 	},
 };
 
-static struct platform_device pasic3;
-
 static struct pasic3_leds_machinfo pasic3_leds_info = {
 	.num_leds   = ARRAY_SIZE(pasic3_leds),
 	.power_gpio = EGPIO_MAGICIAN_LED_POWER,