[Fix] no-redundant-roles, role-supports-aria-props: Remove implicit role from dl element

- Add a valid test case indicating `list` as a valid role for dl
- Remove dl import and export from implicitRoles` index.js file
- Remove dl.js form implicitRoles folder

Fixes #847

Author: uncommon-type

__tests__/src/rules/no-redundant-roles-test.js

@@ -77,6 +77,7 @@ ruleTester.run(`${ruleName}:recommended (valid list role override)`, rule, {
   valid: [
     { code: '<ul role="list" />' },
     { code: '<ol role="list" />' },
+    { code: '<dl role="list" />' },
   ]
     .map(ruleOptionsMapperFactory(listException))
     .map(parserOptionsMapper),

__tests__/src/rules/role-supports-aria-props-test.js

@@ -432,10 +432,6 @@ ruleTester.run('role-supports-aria-props', rule, {
       code: '<dialog aria-expanded />',
       errors: [errorMessage('aria-expanded', 'dialog', 'dialog', true)],
     },
-    {
-      code: '<dl aria-expanded />',
-      errors: [errorMessage('aria-expanded', 'list', 'dl', true)],
-    },
     {
       code: '<aside aria-expanded />',
       errors: [errorMessage('aria-expanded', 'complementary', 'aside', true)],

src/util/implicitRoles/dl.js

@@ -7,7 +7,6 @@ import button from './button';
 import datalist from './datalist';
 import details from './details';
 import dialog from './dialog';
-import dl from './dl';
 import form from './form';
 import h1 from './h1';
 import h2 from './h2';
@@ -46,7 +45,6 @@ export default {
   datalist,
   details,
   dialog,
-  dl,
   form,
   h1,
   h2,