[mutter] metatest: Dispatch the destruction instead of sleeping after it

[Jonas Ådahl <jadahl src gnome org>]

commit ecf7e532065438bc48c0be6860c9b51b9a90a42d
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Fri Jul 5 15:50:12 2019 +0200

    metatest: Dispatch the destruction instead of sleeping after it
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/669/

 ...d-transient-no-input-parent-delayed-focus-default-cancelled.metatest | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/tests/stacking/closed-transient-no-input-parent-delayed-focus-default-cancelled.metatest 
b/src/tests/stacking/closed-transient-no-input-parent-delayed-focus-default-cancelled.metatest
index 38897e388..0c7261fa7 100644
--- a/src/tests/stacking/closed-transient-no-input-parent-delayed-focus-default-cancelled.metatest
+++ b/src/tests/stacking/closed-transient-no-input-parent-delayed-focus-default-cancelled.metatest
@@ -20,7 +20,7 @@ assert_focused 1/3
 assert_stacking 2/1 1/1 1/2 1/3
 
 destroy 1/3
-sleep 10
+dispatch
 
 assert_focused none
 assert_stacking 2/1 1/1 1/2