ModelPermission.evalRoleMember() was disabled. why?

In the file /framework/service/src/org/ofbiz/service/ModelPermission.java taken from the trunk.

I noticed that a block of code org.ofbiz.service.ModelPermission.evalRoleMember() was disabled.

 private boolean evalRoleMember(GenericValue userLogin) {
        if (nameOrRole == null) {
            Debug.logWarning("Null role type name passed for evaluation", module);
            return false;
        }
        GenericDelegator delegator = userLogin.getDelegator();
        List<GenericValue> partyRoles = null;

        /** (jaz) THIS IS NOT SECURE AT ALL
        try {
            partyRoles = delegator.findByAnd("PartyRole", "roleTypeId", nameOrRole, "partyId", userLogin.get("partyId"));
        } catch (GenericEntityException e) {
            Debug.logError(e, "Unable to lookup PartyRole records", module);
        }
        **/

        if (UtilValidate.isNotEmpty(partyRoles)) {
            //wt;
            //partyRoles = EntityUtil.filterByDate(partyRoles);
            if (UtilValidate.isNotEmpty(partyRoles)) {
                return true;
            }
        }
        return false;
    }

Could someone tell me why this is so?
Thanks in advance.