@Override
 public void deleteOrganisationUnit(OrganisationUnit source) {
   minMaxDataElementService.removeMinMaxDataElements(source);
 }
 @Override
 public void deleteDataElementCategoryOptionCombo(DataElementCategoryOptionCombo optionCombo) {
   minMaxDataElementService.removeMinMaxDataElements(optionCombo);
 }
 @Override
 public void deleteDataElement(DataElement dataElement) {
   minMaxDataElementService.removeMinMaxDataElements(dataElement);
 }