Bluetooth: Remove rfcomm_carrier_raised()

Remove the rfcomm_carrier_raised() definition as that function isn't
used anymore.
Signed-off-by: Gianluca Anzolin <gianluca@sottospazio.it>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/rfcomm/tty.c

@@ -160,14 +160,6 @@ static int rfcomm_dev_activate(struct tty_port *port, struct tty_struct *tty)
 	return err;
 }
 
-/* we block the open until the dlc->state becomes BT_CONNECTED */
-static int rfcomm_dev_carrier_raised(struct tty_port *port)
-{
-	struct rfcomm_dev *dev = container_of(port, struct rfcomm_dev, port);
-
-	return (dev->dlc->state == BT_CONNECTED);
-}
-
 /* device-specific cleanup: close the dlc */
 static void rfcomm_dev_shutdown(struct tty_port *port)
 {