fixed capabilities struct

[[Imported from SVN: r2435]]

grid/sgrid.hh

@@ -1101,7 +1101,7 @@ namespace Dune {
     };
 
     template<int dim, int dimw, int cdim>
-    struct hasEntity< SGrid<dim,dimw>, SEntity<cdim, dim, const SGrid<dim,dimw> > >
+    struct hasEntity< SGrid<dim,dimw>, cdim>
     {
       static const bool v = true;
     };