media: dvb-frontends: clean up unneeded else

Clean up unneeded 'else'.

Link: https://lore.kernel.org/linux-media/20220408092831.45755-1-wanjiabing@vivo.comSigned-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/dvb-frontends/mxl5xx.c

@@ -1644,8 +1644,6 @@ static int validate_sku(struct mxl *state)
 		default:
 			return -1;
 		}
-	} else {
-
 	}
 	return -1;
 }