message: CROSS_PRODUCT reference type is gone
diff: @@ -76,12 +76,6 @@ void StatementSimplifier::Simplify(TableRef &ref) {
  Simplify(*subquery.subquery->node);
  break;
  }
  - case TableReferenceType::CROSS_PRODUCT: {
  - auto &cp = (CrossProductRef &)ref;
  - Simplify(*cp.left);
  - Simplify(*cp.right);
  - break;
  - }
  case TableReferenceType::JOIN: {
  auto &cp = (JoinRef &)ref;
  Simplify(*cp.left);
  