serial: move delta_msr_wait into the tty_port

This is used by various drivers not just serial and can be extracted
as commonality

Signed-off-by: Alan Cox <alan@linux.intel.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 27767ea5fa29..bcafecd3b7c1 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -349,7 +349,6 @@ struct uart_state {
         struct circ_buf         xmit;
 
         struct tasklet_struct   tlet;
-        wait_queue_head_t       delta_msr_wait;
         struct uart_port        *uart_port;
 };