Remove unused <screen> section.

documentation/testing.sgml

diff --git a/documentation/testing.sgml b/documentation/testing.sgml
index 2fc959b..6e1ee11 100644
--- a/documentation/testing.sgml
+++ b/documentation/testing.sgml
@@ -250,9 +250,6 @@
       </sect2>
       <sect2>
         <title>With Visual C++</title>
-	<screen>
-	
-	</screen>
         <itemizedlist>
           <listitem><para>
             If you are using Visual Studio 6, make sure you have the