docs: public void deleteMtoNImplementor(CollectionDescriptor cod, Object obj)
      {
          ClassDescriptor cld = pb.getDescriptorRepository().getDescriptorFor(obj.getClass());
          ValueContainer[] pkValues = pb.serviceBrokerHelper().getKeyValues(cld, obj);
          String[] pkColumns = cod.getFksToThisClass();
          String table = cod.getIndirectionTable();
          String deleteStmt = pb.serviceSqlGenerator().getDeleteMNStatement(table, pkColumns, null);
          pb.serviceJdbcAccess().executeUpdateSQL(deleteStmt, cld, pkValues, null);
      }