drivers/video/backlight/adp8860_bl.c: remove a redundant assignment for max_brightness

We have set props.max_brightness before registering backlight device.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/backlight/adp8860_bl.c

@@ -722,8 +722,7 @@ static int __devinit adp8860_probe(struct i2c_client *client,
 		goto out2;
 	}
 
-	bl->props.max_brightness =
-		bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
+	bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
 
 	data->bl = bl;