tty: hvc: Remove second semicolon

There is a statement with two semicolons. Remove the second one, it
is redundant.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240315091734.2430416-1-colin.i.king@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/hvc/hvc_xen.c

@@ -558,7 +558,7 @@ static void xencons_backend_changed(struct xenbus_device *dev,
 			break;
 		fallthrough;	/* Missed the backend's CLOSING state */
 	case XenbusStateClosing: {
-		struct xencons_info *info = dev_get_drvdata(&dev->dev);;
+		struct xencons_info *info = dev_get_drvdata(&dev->dev);
 
 		/*
 		 * Don't tear down the evtchn and grant ref before the other