diff --git a/opm/core/utility/writeVtkData.hpp b/opm/core/utility/writeVtkData.hpp
deleted file mode 100644
index 96cdfac22..000000000
--- a/opm/core/utility/writeVtkData.hpp
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
-  Copyright 2012 SINTEF ICT, Applied Mathematics.
-
-  This file is part of the Open Porous Media project (OPM).
-
-  OPM is free software: you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation, either version 3 of the License, or
-  (at your option) any later version.
-
-  OPM is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef OPM_WRITEVTKDATA_HEADER_INCLUDED
-#define OPM_WRITEVTKDATA_HEADER_INCLUDED
-
-
-#include <string>
-#include <map>
-#include <vector>
-#include <tr1/array>
-#include <iosfwd>
-#include <opm/core/utility/DataMap.hpp>
-
-struct UnstructuredGrid;
-
-namespace Opm
-{
-
-    /// Vtk output for cartesian grids.
-    void writeVtkData(const std::tr1::array<int, 3>& dims,
-                      const std::tr1::array<double, 3>& cell_size,
-                      const DataMap& data,
-                      std::ostream& os);
-
-    /// Vtk output for general grids.
-    void writeVtkData(const UnstructuredGrid& grid,
-                      const DataMap& data,
-                      std::ostream& os);
-} // namespace Opm
-
-#endif // OPM_WRITEVTKDATA_HEADER_INCLUDED