floppy: remove duplicated code in redo_fd_request()

duplicated code in redo_fd_request(),
unlock_fdc() function has the same code "do_floppy = NULL" inside.

Signed-off-by: Yufeng Wang <[email protected]>
Suggested-by: Denis Efremov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

Author: Yufeng Wang

drivers/block/floppy.c

@@ -2787,7 +2787,6 @@ static void redo_fd_request(void)
 		pending = set_next_request();
 		spin_unlock_irq(&floppy_lock);
 		if (!pending) {
-			do_floppy = NULL;
 			unlock_fdc();
 			return;
 		}