fix huge memory leak

  memory->destroy(potqn);

  memory->destroy(dpotqn);

  memory->destroy(fafbOxOxSurf);

  memory->destroy(dfafbOxOxSurf);

  memory->destroy(fafbTiOxSurf);

  memory->destroy(dfafbTiOxSurf);

  memory->destroy(fafbOxOxBB);

  memory->destroy(dfafbOxOxBB);

  memory->destroy(fafbTiOxBB);

  memory->destroy(dfafbTiOxBB);

  memory->destroy(ecov);

  memory->destroy(sbcov);

  memory->destroy(coord);