Only include amiramesh in linear-elasticity for dune-common <= 2.7

All versions including and after dune-common-2.8 do not support amiramesh anymore

src/linear-elasticity.cc

 #include <config.h>
 
+#include <dune/common/version.hh>
 #include <dune/common/bitsetvector.hh>
 #include <dune/common/parametertree.hh>
 #include <dune/common/parametertreeparser.hh>
 
 #include <dune/grid/uggrid.hh>
+#if HAVE_AMIRAMESH && DUNE_VERSION_LT(DUNE_COMMON, 2, 8)
 #include <dune/grid/io/file/amirameshreader.hh>
+#endif
 #include <dune/grid/io/file/vtk.hh>
 
 #include <dune/istl/io.hh>
@@ -93,7 +96,7 @@ int main (int argc, char *argv[]) try
     using GridView = GridType::LeafGridView;
     grid->setRefinementType(GridType::COPY);
 
-#if HAVE_AMIRAMESH
+#if HAVE_AMIRAMESH && DUNE_VERSION_LT(DUNE_COMMON, 2, 8)
     if (paramBoundaries)
         grid = AmiraMeshReader<GridType>::read(path + gridFile, PSurfaceBoundary<dim-1>::read(path + parFile));
     else
@@ -107,7 +110,7 @@ int main (int argc, char *argv[]) try
     readBoundaryPatch<GridType>(coarseDirichletBoundary, path + dirichletFile);
 
     VectorType coarseDirichletValues(grid->size(0, dim));
-#if HAVE_AMIRAMESH
+#if HAVE_AMIRAMESH && DUNE_VERSION_LT(DUNE_COMMON, 2, 8)
     AmiraMeshReader<GridType>::readFunction(coarseDirichletValues, path + dirichletValuesFile);
 #else
 #warning You need libamiramesh for this code!
@@ -118,7 +121,7 @@ int main (int argc, char *argv[]) try
     readBoundaryPatch<GridType>(coarseNeumannBoundary, path + neumannFile);
 
     VectorType coarseNeumannValues(grid->size(0, dim));
-#if HAVE_AMIRAMESH
+#if HAVE_AMIRAMESH && DUNE_VERSION_LT(DUNE_COMMON, 2, 8)
     AmiraMeshReader<GridType>::readFunction(coarseNeumannValues, path + neumannValuesFile);
 #else
 #warning You need libamiramesh for this code!