commented non-existent (2.0) header again

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@5865 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/common/start.hh

@@ -30,7 +30,7 @@
 #include <dune/grid/io/file/dgfparser.hh>
 #include <dune/common/mpihelper.hh>
 #include <iostream>
-#include <dune/common/parametertreeparser.hh>
+//#include <dune/common/parametertreeparser.hh>
 
 
 namespace Dumux