Remove an obsolete comment about openDX utilities.

It looks like this was removed a few years ago.

diff --git a/include/deal.II/base/data_out_base.h b/include/deal.II/base/data_out_base.h
index 26252a5323d736811f91d22cc20022c17dc5d0f8..cb4f073ff2b617430c0f2f7f76e411dfbee18ae2 100644 (file)
--- a/include/deal.II/base/data_out_base.h
+++ b/include/deal.II/base/data_out_base.h
@@ -1263,9 +1263,6 @@ namespace DataOutBase
 
   /**
    * Write the given list of patches to the output stream in OpenDX format.
-   *
-   * Since OpenDX uses some kind of visual data flow oriented programming
-   * language, some of these programs are provided in <tt>contrib/dx</tt>.
    */
   template <int dim, int spacedim>
   void write_dx (const std::vector<Patch<dim,spacedim> > &patches,