Fix eslint findings

Author: migerh

packages/react-scripts/config/jest/typescriptTransform.js

@@ -1,5 +1,7 @@
 // Copyright 2004-present Facebook. All Rights Reserved.
 
+'use strict';
+
 const fs = require('fs');
 const tsc = require('typescript');
 const tsconfigPath = require('app-root-path').resolve('/tsconfig.json');

packages/react-scripts/config/webpack.config.dev.js

@@ -19,11 +19,6 @@ var WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeMod
 var getClientEnvironment = require('./env');
 var paths = require('./paths');
 
-// @remove-on-eject-begin
-// `path` is not used after eject - see https://github.com/facebookincubator/create-react-app/issues/1174
-var path = require('path');
-// @remove-on-eject-end
-
 // Webpack uses `publicPath` to determine where the app is being served from.
 // In development, we always serve from the root. This makes config easier.
 var publicPath = '/';

packages/react-scripts/config/webpack.config.prod.js

@@ -19,11 +19,6 @@ var InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
 var paths = require('./paths');
 var getClientEnvironment = require('./env');
 
-// @remove-on-eject-begin
-// `path` is not used after eject - see https://github.com/facebookincubator/create-react-app/issues/1174
-var path = require('path');
-// @remove-on-eject-end
-
 // Webpack uses `publicPath` to determine where the app is being served from.
 // It requires a trailing slash, or the file assets will get an incorrect path.
 var publicPath = paths.servedPath;

packages/react-scripts/scripts/build.js

@@ -31,8 +31,6 @@ var FileSizeReporter = require('react-dev-utils/FileSizeReporter');
 var measureFileSizesBeforeBuild = FileSizeReporter.measureFileSizesBeforeBuild;
 var printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
 
-var recursive = require('recursive-readdir');
-var stripAnsi = require('strip-ansi');
 var { highlight } = require('cli-highlight');
 
 var useYarn = fs.existsSync(paths.yarnLockFile);

packages/react-scripts/utils/createJestConfig.js

@@ -14,7 +14,7 @@
 const fs = require('fs');
 const paths = require('../config/paths');
 
-module.exports = (resolve, rootDir, isEjecting) => {
+module.exports = (resolve, rootDir) => {
   // Use this instead of `paths.testsSetup` to avoid putting
   // an absolute filename into configuration after ejecting.
   const setupTestsFile = fs.existsSync(paths.testsSetup) ? '<rootDir>/src/setupTests.ts' : undefined;