[libpeas] Remove use of push and pop composite child

[Garrett Regier <gregier src gnome org>]

commit 4b9d5ec3f560ed7f43eb9f16ce825b229c35b60e
Author: Garrett Regier <garrettregier gmail com>
Date:   Sat Apr 27 04:34:43 2013 -0700

    Remove use of push and pop composite child
    
    These are now deprecated.
    
    https://git.gnome.org/browse/gtk+/commit/?id=c6ab5157358bc364eede018acc14de976add195c

 libpeas-gtk/peas-gtk-plugin-manager.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/libpeas-gtk/peas-gtk-plugin-manager.c b/libpeas-gtk/peas-gtk-plugin-manager.c
index e8f3248..5306bcd 100644
--- a/libpeas-gtk/peas-gtk-plugin-manager.c
+++ b/libpeas-gtk/peas-gtk-plugin-manager.c
@@ -354,8 +354,6 @@ peas_gtk_plugin_manager_init (PeasGtkPluginManager *pm)
   gtk_orientable_set_orientation (GTK_ORIENTABLE (pm),
                                   GTK_ORIENTATION_VERTICAL);
 
-  gtk_widget_push_composite_child ();
-
   pm->priv->sw = gtk_scrolled_window_new (NULL, NULL);
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (pm->priv->sw),
                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
@@ -396,8 +394,6 @@ peas_gtk_plugin_manager_init (PeasGtkPluginManager *pm)
   gtk_box_pack_start (GTK_BOX (item_box), pm->priv->configure_button,
                       FALSE, FALSE, 0);
 
-  gtk_widget_pop_composite_child ();
-
   /* setup a window of a sane size. */
   gtk_widget_set_size_request (GTK_WIDGET (pm->priv->sw), 270, 100);