[gtkmm] Remove Gtk::StyleContext::render_insertion_cursor

[Andreas Persson <andreasp src gnome org>]

commit 6dabd5c77fd72874e454f1936d8ff3925d583a82
Author: Andreas Persson <andreasp56 outlook com>
Date:   Sat Oct 17 08:20:35 2020 +0200

    Remove Gtk::StyleContext::render_insertion_cursor
    
    It has been removed from gtk.

 gtk/src/stylecontext.hg | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/gtk/src/stylecontext.hg b/gtk/src/stylecontext.hg
index 11f470f3..96ab4599 100644
--- a/gtk/src/stylecontext.hg
+++ b/gtk/src/stylecontext.hg
@@ -153,7 +153,6 @@ public:
   _WRAP_METHOD(void render_handle(const Cairo::RefPtr<Cairo::Context>& cr, double x, double y, double width, 
double height), gtk_render_handle)
   _WRAP_METHOD(void render_activity(const Cairo::RefPtr<Cairo::Context>& cr,  double x,  double y, double 
width, double height), gtk_render_activity)
   _WRAP_METHOD(void render_icon(const Cairo::RefPtr<Cairo::Context>& cr, const Glib::RefPtr<Gdk::Texture>& 
texture, double x, double y), gtk_render_icon)
-  _WRAP_METHOD(void render_insertion_cursor(const Cairo::RefPtr<Cairo::Context>& cr, double x, double y, 
const Glib::RefPtr<Pango::Layout>& layout, int index, Pango::Direction direction), 
gtk_render_insertion_cursor)
 
   _WRAP_METHOD(Glib::ustring to_string(PrintFlags flags) const, gtk_style_context_to_string)