[gtkmm] ToolItem: Remove set/get_use_drag_window().

[Murray Cumming <murrayc src gnome org>]

commit a68cc5698a372a06d2703893ba642db56d07b186
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon May 29 11:41:48 2017 +0200

    ToolItem: Remove set/get_use_drag_window().
    
    Because it was removed from the GTK+ API:
    https://git.gnome.org/browse/gtk+/commit/gtk/gtktoolitem.h?id=d9d0c56eb72cc433e21bf067fd8059f16e09b2a9

 gtk/src/toolitem.hg |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/gtk/src/toolitem.hg b/gtk/src/toolitem.hg
index b974d76..98cb595 100644
--- a/gtk/src/toolitem.hg
+++ b/gtk/src/toolitem.hg
@@ -57,9 +57,6 @@ public:
   _WRAP_METHOD(void set_tooltip_text(const Glib::ustring& text),  gtk_tool_item_set_tooltip_text)
   _WRAP_METHOD(void set_tooltip_markup(const Glib::ustring& markup), gtk_tool_item_set_tooltip_markup)
 
-  _WRAP_METHOD(void set_use_drag_window(bool use_drag_window = true), gtk_tool_item_set_use_drag_window)
-  _WRAP_METHOD(bool get_use_drag_window() const, gtk_tool_item_get_use_drag_window)
-
   _WRAP_METHOD(void set_visible_horizontal(bool visible_horizontal = true), 
gtk_tool_item_set_visible_horizontal)
   _WRAP_METHOD(bool get_visible_horizontal() const, gtk_tool_item_get_visible_horizontal)