[iagno] Don't use HeaderBar.show_fallback_app_menu

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 424af20ea3910e86a3d48cd4eff68476ed67e362
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri Dec 13 18:39:31 2013 -0600

    Don't use HeaderBar.show_fallback_app_menu
    
    It's been removed

 src/iagno.vala |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/iagno.vala b/src/iagno.vala
index 8d94a63..b37bf80 100644
--- a/src/iagno.vala
+++ b/src/iagno.vala
@@ -99,7 +99,6 @@ public class Iagno : Gtk.Application
 
         var headerbar = new Gtk.HeaderBar ();
         headerbar.show_close_button = true;
-        headerbar.show_fallback_app_menu = true;
         headerbar.set_title (_("Iagno"));
         headerbar.show ();
         window.set_titlebar (headerbar);