[gtk+] Don't use g_slist_next in gtktreeview.c

[Matthias Clasen <matthiasc src gnome org>]

commit 2dc63dad34df84a9281c3aff2f0cc0346c4fb3be
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 19 20:42:12 2015 -0400

    Don't use g_slist_next in gtktreeview.c
    
    We generally use ->next directly.

 gtk/gtktreeview.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 3eec8e4..e97a053 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -9923,7 +9923,7 @@ gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
   while (tmp_list)
     {
       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
-      tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
+      tmp_list = rtl ? tmp_list->prev : tmp_list->next;
 
       if (gtk_tree_view_column_get_visible (cur_column) == FALSE)
        continue;