Delete Code In Developer console

List <Entitlement> defEntitlement = [SELECT Id, Default_Entitlement__C FROM Entitlement WHERE Default_Entitlement__C = TRUE];

dsr=database.delete(defEntitlement,true);

                for (Database.SaveResult sr : dsr) {

                    if (sr.isSuccess()) {

                        // Operation was successful, so get the ID of the record that was processed

                        System.debug('Successfully deleted entitlement. Entitlement ID: ' + sr.getId());

                        insertedEntIds.add(sr.getId());

                    }

                    else {

                        for(Database.Error err : sr.getErrors()) {

                            System.debug('The following error has occurred.');                   

                            System.debug(err.getStatusCode() + ': ' + err.getMessage());

                            System.debug('Fields that affected this error: ' + err.getFields());

                        }

                    }

                }