[gtk+] Remove reference to GTK+ 2 in reference docs

[Matthias Clasen <matthiasc src gnome org>]

commit 318de7cd444a951e0fb5bc65eefa389829beebeb
Author: Ekaterina Gerasimova <kittykat3756 gmail com>
Date:   Thu Sep 18 21:39:07 2014 +0100

    Remove reference to GTK+ 2 in reference docs
    
    The reference applies to both GTK+ 2 and GTK+ 3, so remove mention of
    the version number from the reference docs.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736927

 docs/reference/gtk/tree_widget.sgml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/tree_widget.sgml b/docs/reference/gtk/tree_widget.sgml
index 8a3f096..aa661b4 100644
--- a/docs/reference/gtk/tree_widget.sgml
+++ b/docs/reference/gtk/tree_widget.sgml
@@ -164,7 +164,7 @@ tree = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
       </para>
       <para>
         Cell renderers are used to draw the data in the tree model in a
-        way.  There are a number of cell renderers that come with GTK+ 2.x,
+        way.  There are a number of cell renderers that come with GTK+,
         including the #GtkCellRendererText, #GtkCellRendererPixbuf and
         the #GtkCellRendererToggle.
         It is relatively easy to write a custom renderer.