[libchamplain] Remove dead code from demo

[Pierre-Luc Beaudoin <plbeaudoin src gnome org>]

commit 7227e6aaa2a7c25f5c849871ff239b698acee65e
Author: Pierre-Luc Beaudoin <pierre-luc pierlux com>
Date:   Mon Aug 3 18:13:49 2009 -0400

    Remove dead code from demo

 demos/launcher-gtk.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/demos/launcher-gtk.c b/demos/launcher-gtk.c
index bcbbd07..eb31307 100644
--- a/demos/launcher-gtk.c
+++ b/demos/launcher-gtk.c
@@ -177,14 +177,6 @@ build_combo_box (GtkComboBox *box)
       "text", COL_NAME, NULL );
 }
 
-static gboolean
-delete_window (GtkWidget *widget,
-    GdkEvent  *event,
-    gpointer   user_data)
-{
-  gtk_main_quit ();
-}
-
 int
 main (int argc,
       char *argv[])