[lint] turn no-undef back on, set browser, cypress, and mocha env's (#5879)

* [lint] turn no-undef back on, set browser, cypress, and mocha env's, and fix issues

* [lint] fix undefined var in TimeTable.jsx

superset/assets/spec/javascripts/sqllab/App_spec.jsx

@@ -3,7 +3,6 @@ import configureStore from 'redux-mock-store';
 import thunk from 'redux-thunk';
 
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/ColumnElement_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { mount } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import { mockedActions, table } from './fixtures';

superset/assets/spec/javascripts/sqllab/CopyQueryTabUrl_spec.jsx

@@ -1,5 +1,4 @@
 import React from 'react';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import { initialState } from './fixtures';
 

superset/assets/spec/javascripts/sqllab/ExploreResultsButton_spec.jsx

@@ -3,7 +3,6 @@ import configureStore from 'redux-mock-store';
 import thunk from 'redux-thunk';
 
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/HighlightedSql_spec.jsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import SyntaxHighlighter from 'react-syntax-highlighter';
 import { mount, shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import HighlightedSql from '../../../src/SqlLab/components/HighlightedSql';

superset/assets/spec/javascripts/sqllab/Link_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import Link from '../../../src/SqlLab/components/Link';

superset/assets/spec/javascripts/sqllab/QuerySearch_spec.jsx

@@ -2,7 +2,6 @@ import React from 'react';
 import Select from 'react-select';
 import { Button } from 'react-bootstrap';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/QueryStateLabel_spec.jsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import { Label } from 'react-bootstrap';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import QueryStateLabel from '../../../src/SqlLab/components/QueryStateLabel';

superset/assets/spec/javascripts/sqllab/QueryTable_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import { Table } from 'reactable';
 

superset/assets/spec/javascripts/sqllab/ResultSet_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/SaveQuery_spec.jsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import { FormControl } from 'react-bootstrap';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import SaveQuery from '../../../src/SqlLab/components/SaveQuery';
 import ModalTrigger from '../../../src/components/ModalTrigger';

superset/assets/spec/javascripts/sqllab/SqlEditorLeftBar_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import sinon from 'sinon';
 import { expect } from 'chai';
 

superset/assets/spec/javascripts/sqllab/SqlEditor_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import { initialState, queries, table } from './fixtures';

superset/assets/spec/javascripts/sqllab/TabStatusIcon_spec.jsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import sinon from 'sinon';
 import { expect } from 'chai';
-import { describe, it } from 'mocha';
 import { shallow } from 'enzyme';
 
 import TabStatusIcon from '../../../src/SqlLab/components/TabStatusIcon';

superset/assets/spec/javascripts/sqllab/TabbedSqlEditors_spec.jsx

@@ -5,7 +5,6 @@ import URI from 'urijs';
 
 import { Tab } from 'react-bootstrap';
 import { shallow, mount } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/TableElement_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { mount, shallow } from 'enzyme';
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import Link from '../../../src/SqlLab/components/Link';

superset/assets/spec/javascripts/sqllab/Timer_spec.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { mount } from 'enzyme';
-import { describe, it, beforeEach } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 

superset/assets/spec/javascripts/sqllab/actions_spec.js

@@ -1,5 +1,4 @@
 /* eslint-disable no-unused-expressions */
-import { it, describe } from 'mocha';
 import { expect } from 'chai';
 import sinon from 'sinon';
 import $ from 'jquery';

superset/assets/spec/javascripts/sqllab/reducers_spec.js

@@ -1,4 +1,3 @@
-import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import * as r from '../../../src/SqlLab/reducers';