[gtkmm] Remove Gtk::TreeView::_auto_store_on_cellrenderer_toggle_edited()

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 56aa59558811f3b318e0dd9674afd7999ef5ee22
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Wed Dec 21 09:44:50 2016 +0100

    Remove Gtk::TreeView::_auto_store_on_cellrenderer_toggle_edited()

 gtk/src/treeview.ccg |    6 ------
 gtk/src/treeview.hg  |    5 -----
 2 files changed, 0 insertions(+), 11 deletions(-)
---
diff --git a/gtk/src/treeview.ccg b/gtk/src/treeview.ccg
index 5de2ddc..d31eed8 100644
--- a/gtk/src/treeview.ccg
+++ b/gtk/src/treeview.ccg
@@ -331,12 +331,6 @@ void TreeView::reset_expander_column()
   gtk_tree_view_set_expander_column(gobj(), nullptr /* see C docs */);
 }
 
-void TreeView::_auto_store_on_cellrenderer_toggle_edited(const Glib::ustring& path_string,
-                                                         int model_column)
-{
-  _auto_store_on_cellrenderer_toggle_edited_with_model(path_string, model_column, get_model());
-}
-
 void TreeView::_auto_store_on_cellrenderer_toggle_edited_with_model(const Glib::ustring& path_string,
                                                          int model_column, const 
Glib::RefPtr<Gtk::TreeModel>& model)
 {
diff --git a/gtk/src/treeview.hg b/gtk/src/treeview.hg
index 5f53f24..bbd0d47 100644
--- a/gtk/src/treeview.hg
+++ b/gtk/src/treeview.hg
@@ -839,11 +839,6 @@ protected:
 
   void _auto_store_on_cellrenderer_toggle_edited_with_model(const Glib::ustring& path_string, int 
model_column, const Glib::RefPtr<Gtk::TreeModel>& model);
 
-  // This is no longer used, but we must keep it to prevent linker errors with already-compiled applications,
-  // For instance, applications that were compiled with the older versions of the templates that did use 
this method.
-  // TODO: Remove this when we can break API.
-  void _auto_store_on_cellrenderer_toggle_edited(const Glib::ustring& path_string, int model_column);
-
   template<class ColumnType> friend
   void TreeView_Private::_connect_auto_store_editable_signal_handler(TreeView*, CellRenderer*, const 
TreeModelColumn<ColumnType>&);