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

diff --git a/docs/reference/gtk/tree_widget.sgml b/docs/reference/gtk/tree_widget.sgml
index 8a3f096b07a58b0908f5a07a6939ea4b475f3132..aa661b4412448094c7eda9e82e58ab4c779515d0 100644 (file)
--- 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.