diff --git a/product/ERP5Type/Core/CategoryAcquiredMembershipArityConstraint.py b/product/ERP5Type/Core/CategoryAcquiredMembershipArityConstraint.py deleted file mode 100644 index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000