Fix remaining linting issues.

Author: Robert Jackson

src/index.js

@@ -7,7 +7,6 @@ const normalizeOptions = require('./utils/normalize-options').normalizeOptions;
 function macros(babel) {
   const t = babel.types;
 
-  let macroBuilder;
   let options;
 
   return {
@@ -24,12 +23,9 @@ function macros(babel) {
             if (item.isImportDeclaration()) {
               let importPath = item.node.source.value;
 
-              let featureSources = options.featureSources;
               let debugToolsImport = options.debugTools.debugToolsImport;
               let envFlagsImport = options.envFlags.envFlagsImport;
 
-              let isFeaturesImport = featureSources.indexOf(importPath) > -1;
-
               if (debugToolsImport && debugToolsImport === importPath) {
                 this.macroBuilder.collectDebugToolsSpecifiers(item.get('specifiers'));
               }

src/utils/builder.js

@@ -104,7 +104,6 @@ module.exports = class Builder {
       callExpression = this._createConsoleAPI(options.consoleAPI || callee, args);
     }
 
-    let identifiers = this._getIdentifiers(args);
     let prefixedIdentifiers = [];
 
     if (options.predicate) {

tests/create-tests.js

@@ -117,7 +117,7 @@ function createTests(options) {
                     let references = binding.referencePaths;
 
                     let replacements = [];
-                    for (let reference of references) {
+                    references.forEach(() => {
                       replacements.push(
                         t.variableDeclaration('var', [
                           t.variableDeclarator(
@@ -126,7 +126,7 @@ function createTests(options) {
                           ),
                         ])
                       );
-                    }
+                    });
 
                     path.remove();
                     importDeclarationPath.insertAfter(replacements);

tests/ensure-baseDir-test.js

@@ -1,7 +1,5 @@
 'use strict';
 
-const fs = require('fs');
-const path = require('path');
 const DebugToolsPlugin = require('..');
 
 describe('baseDir', function() {