Method cancel

gecode/int/gcc/view.hpp:274–275

  forceinline void
  CardConst::subscribe(Space&, Propagator&, PropCond, bool) {}
  forceinline void
  CardConst::cancel(Space&, Propagator&, PropCond) {}
  forceinline void
  CardConst::reschedule(Space&, Propagator&, PropCond) {}