[Cleanup] Kill duneoctave

dune/tectonic/octave/duneoctave.hh

-#ifndef DUNE_TECTONIC_OCTAVE_DUNEOCTAVE_HH
-#define DUNE_TECTONIC_OCTAVE_DUNEOCTAVE_HH
-
-#include <cassert>
-
-#include <octave/oct.h>
-
-#include "../ellipticenergy.hh"
-
-namespace Dune {
-template <int dimension>
-void octaveToDune(Array<double> const &from,
-                  typename Dune::EllipticEnergy<dimension>::SmallVector &to) {
-  assert(from.length() == dimension);
-  for (size_t i = 0; i < dimension; ++i)
-    to[i] = from(i);
-}
-
-template <int dimension>
-void octaveToDune(Matrix const &from,
-                  typename Dune::EllipticEnergy<dimension>::SmallMatrix &to) {
-  dim_vector dims = from.dims();
-  assert(dims.length() == 2);
-  assert(dims(0) == 2);
-  assert(dims(1) == 2);
-  for (size_t i = 0; i < dimension; ++i)
-    for (size_t j = 0; j < dimension; ++j)
-      to[i][j] = from(i, j);
-}
-
-template <int dimension>
-void duneToOctave(
-    typename Dune::EllipticEnergy<dimension>::SmallVector const &from,
-    Array<double> &to) {
-  assert(to.length() == dimension);
-  for (size_t i = 0; i < dimension; ++i)
-    to(i) = from[i];
-}
-}
-#endif