[gtk+] container: Don't add classes twice

[Benjamin Otte <otte src gnome org>]

commit 44460cd7207692e73f4374865a34314800ec2856
Author: Garrett Regier <garrettregier gmail com>
Date:   Fri Sep 11 16:13:45 2015 +0200

    container: Don't add classes twice
    
    _gtk_widget_create_path() already adds the style classes.

 gtk/gtkcontainer.c |   19 +------------------
 1 files changed, 1 insertions(+), 18 deletions(-)
---
diff --git a/gtk/gtkcontainer.c b/gtk/gtkcontainer.c
index 76b8937..16337b5 100644
--- a/gtk/gtkcontainer.c
+++ b/gtk/gtkcontainer.c
@@ -2755,28 +2755,11 @@ static GtkWidgetPath *
 gtk_container_real_get_path_for_child (GtkContainer *container,
                                        GtkWidget    *child)
 {
-  GtkStyleContext *context;
   GtkWidgetPath *path;
-  GList *classes;
-  GtkWidget *widget = (GtkWidget *)container;
+  GtkWidget *widget = GTK_WIDGET (container);
 
-  context = _gtk_widget_get_style_context (widget);
   path = _gtk_widget_create_path (widget);
 
-  /* Copy any permanent classes to the path */
-  classes = gtk_style_context_list_classes (context);
-
-  while (classes)
-    {
-      GList *cur;
-
-      cur = classes;
-      classes = classes->next;
-
-      gtk_widget_path_iter_add_class (path, -1, cur->data);
-      g_list_free_1 (cur);
-    }
-
   gtk_widget_path_append_for_widget (path, child);
 
   return path;