remove gof_cancer rule from default logic but allow it if it exists

README.md

@@ -30,4 +30,4 @@ The BMDS Desktop has a startup screen where you can select which database file y
 
 ## Disclaimer
 
-The United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis and the user assumes responsibility for its use.  EPA has relinquished control of the information and no longer has responsibility to protect the integrity , confidentiality, or availability of the information.  Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA.  The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.  Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA.  The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.
+The United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis and the user assumes responsibility for its use.  EPA has relinquished control of the information and no longer has responsibility to protect the integrity, confidentiality, or availability of the information.  Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA.  The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.

frontend/src/components/Logic/RuleTable.js

@@ -3,7 +3,7 @@ import {inject, observer} from "mobx-react";
 import PropTypes from "prop-types";
 import React, {Component} from "react";
 
-import {ruleOrder} from "@/constants/logicConstants";
+import {optionalRules, ruleOrder} from "@/constants/logicConstants";
 
 import RuleRow from "./RuleRow";
 
@@ -32,6 +32,9 @@ class RuleList extends Component {
                 <tbody>
                     {ruleOrder.map(ruleName => {
                         const ruleIndex = _.findIndex(rules, d => d.rule_class === ruleName);
+                        if (ruleIndex === -1 && _.includes(optionalRules, ruleName)) {
+                            return null;
+                        }
                         return (
                             <RuleRow
                                 key={ruleName}

frontend/src/constants/logicConstants.js

@@ -46,6 +46,7 @@ export const RULES = Object.freeze({
         RULES.CONTROL_STDEV_FIT,
         RULES.DOF_ZERO,
     ],
+    optionalRules = [RULES.GOF_CANCER],
     ruleLookups = {
         [RULES.BMD_MISSING]: {
             notes: val => "BMD not estimated",