clean up

collects/mred/private/wx/cocoa/button.rkt

@@ -124,8 +124,6 @@
             (values cocoa image-cocoa)))
         (values button-cocoa #f)))
 
-  (define we (make-will-executor))
-
   (super-new [parent parent]
              [cocoa cocoa]
              [no-show? (memq 'deleted style)]

collects/mred/private/wx/gtk/list-box.rkt

@@ -138,7 +138,6 @@
   (define callback cb)
   (define ignore-click? #f)
   (define/public (queue-changed)
-    (make-will-executor)
     ;; Called from event-handling thread
     (unless ignore-click?
       (queue-window-event