diff --git a/src/md/lammps/domain_lammps_minimize.hh-old b/src/md/lammps/domain_lammps_minimize.hh-old
deleted file mode 100644
index 3115b33..0000000
--- a/src/md/lammps/domain_lammps_minimize.hh-old
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * @file   domain_lammps_minimize.hh
- *
- * @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
- *
- * @date   Mon Sep 30 12:13:51 2013
- *
- * @brief  This is the generic LAMMPS model capable of static solve
- *
- * @section LICENSE
- *
- * Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
- * Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
- *
- * LibMultiScale is free  software: you can redistribute it and/or  modify it
- * under the
- * terms  of the  GNU Lesser  General Public  License as  published by  the Free
- * Software Foundation, either version 3 of the License, or (at your option) any
- * later version.
- *
- * LibMultiScale 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  Lesser General  Public License  for more
- * details.
- *
- * You should  have received  a copy  of the GNU  Lesser General  Public License
- * along with LibMultiScale. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef __LIBMULTISCALE_DOMAIN_LAMMPS_MINIMIZE_HH__
-#define __LIBMULTISCALE_DOMAIN_LAMMPS_MINIMIZE_HH__
-/* -------------------------------------------------------------------------- */
-#include "domain_lammps.hh"
-/* -------------------------------------------------------------------------- */
-__BEGIN_LIBMULTISCALE__
-
-/**
- * Class DomainLammpsMinimize
- * domaine atomique
- */
-
-template <UInt Dim>
-class DomainLammpsMinimize : public virtual DomainLammps<Dim> {
-
-  /* ------------------------------------------------------------------------ */
-  /* Constructors/Destructors                                                 */
-  /* ------------------------------------------------------------------------ */
-
-public:
-  DomainLammpsMinimize(LMID ID, CommGroup &group);
-  ~DomainLammpsMinimize() {}
-
-  /* ------------------------------------------------------------------------ */
-  /* Methods                                                                  */
-  /* ------------------------------------------------------------------------ */
-
-  void performStep1();
-  void performStep3();
-  void performStep2();
-  void init();
-
-  /* ------------------------------------------------------------------------ */
-  /* Class Members                                                            */
-  /* ------------------------------------------------------------------------ */
-
-protected:
-  Real gg;
-};
-/* -------------------------------------------------------------------------- */
-
-__END_LIBMULTISCALE__
-
-#endif /* __LIBMULTISCALE_DOMAIN_LAMMPS_MINIMIZE_HH__ */