Remove unnecessary forward declaration of uart_wait_until_sent().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/tty/serial/serial_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index c494cb39394b..db7f6c0c39bf 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -49,7 +49,6 @@ static struct lock_class_key port_lock_key;
  */
 #define RS485_MAX_RTS_DELAY	100 /* msecs */
 
-static void uart_wait_until_sent(struct tty_struct *tty, int timeout);
 static void uart_change_pm(struct uart_state *state,
 			   enum uart_pm_state pm_state);
 
-- 
2.30.2