[gnome-shell] extensionPrefs: Remove an extra parameter to set_cell_data_func

[Jasper St. Pierre <jstpierre src gnome org>]

commit f71108a214b028241e8c1750f4840afa82376f56
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Oct 7 17:15:07 2012 -0300

    extensionPrefs: Remove an extra parameter to set_cell_data_func

 js/extensionPrefs/main.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/extensionPrefs/main.js b/js/extensionPrefs/main.js
index 7340dec..53a6966 100644
--- a/js/extensionPrefs/main.js
+++ b/js/extensionPrefs/main.js
@@ -174,7 +174,7 @@ const Application = new Lang.Class({
         let renderer = new Gtk.CellRendererText();
         this._extensionSelector.pack_start(renderer, true);
         this._extensionSelector.add_attribute(renderer, 'text', 1);
-        this._extensionSelector.set_cell_data_func(renderer, Lang.bind(this, this._setExtensionInsensitive), null);
+        this._extensionSelector.set_cell_data_func(renderer, Lang.bind(this, this._setExtensionInsensitive));
         this._extensionSelector.connect('changed', Lang.bind(this, this._extensionSelected));
 
         toolitem = new Gtk.ToolItem({ child: this._extensionSelector });