Implement transition matrix binary I/O with legacy and HDF5 format

src/libnptm/TransitionMatrix.cpp

@@ -140,7 +140,6 @@ TransitionMatrix* TransitionMatrix::from_hdf5(string file_name) {
 	_elements[ei] = complex<double>(file_vector[2 * ei], file_vector[2 * ei + 1]);
       }
       status = H5Dclose(dset_id);
-      status = hdf_file->read("RADIUS", "FLOAT64", &_radius);
       tm = new TransitionMatrix(_is, _lm, _vk, _exri, _elements, _radius);
       delete[] file_vector;
     }