USB: gadget: u_serial.c: fixed a brace coding style issue

Signed-off-by: NShaun Silk <g0del@bigpond.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/u_serial.c

@@ -552,9 +552,8 @@ static void gs_rx_push(unsigned long _port)
 	/* Push from tty to ldisc; without low_latency set this is handled by
 	 * a workqueue, so we won't get callbacks and can hold port_lock
 	 */
-	if (tty && do_push) {
+	if (tty && do_push)
 		tty_flip_buffer_push(tty);
-	}
 
 
 	/* We want our data queue to become empty ASAP, keeping data