[gtk/popover-accessible-private] a11y: Drop the private from GtkPopoverAccessible

[Matthias Clasen <matthiasc src gnome org>]

commit c5076675aa7a6bfb5a1f1039119b585bff1ba813
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 13 09:50:36 2020 -0400

    a11y: Drop the private from GtkPopoverAccessible
    
    It is not used, and empty structs upset msvc.

 gtk/a11y/gtkpopoveraccessible.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
---
diff --git a/gtk/a11y/gtkpopoveraccessible.c b/gtk/a11y/gtkpopoveraccessible.c
index 6e73a34a47..a530f4aa84 100644
--- a/gtk/a11y/gtkpopoveraccessible.c
+++ b/gtk/a11y/gtkpopoveraccessible.c
@@ -25,12 +25,7 @@
 
 typedef struct _GtkPopoverAccessiblePrivate GtkPopoverAccessiblePrivate;
 
-struct _GtkPopoverAccessiblePrivate
-{
-};
-
-G_DEFINE_TYPE_WITH_CODE (GtkPopoverAccessible, gtk_popover_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
-                         G_ADD_PRIVATE (GtkPopoverAccessible))
+G_DEFINE_TYPE (GtkPopoverAccessible, gtk_popover_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE)
 
 static void
 popover_update_modality (AtkObject  *object,