fix: use default modules option from preset-env

Author: JLHwung

packages/babel-preset-react-app/create.js

@@ -83,8 +83,6 @@ module.exports = function (api, opts, env) {
           useBuiltIns: 'entry',
           // Set the corejs version we are using to avoid warnings in console
           corejs: 3,
-          // Do not transform modules to CJS
-          modules: false,
           // Exclude transforms that make all code slower
           exclude: ['transform-typeof-symbol'],
         },

packages/babel-preset-react-app/dependencies.js

@@ -74,8 +74,6 @@ module.exports = function (api, opts) {
           targets: {
             node: 'current',
           },
-          // Do not transform modules to CJS
-          modules: false,
           // Exclude transforms that make all code slower
           exclude: ['transform-typeof-symbol'],
         },
@@ -89,8 +87,6 @@ module.exports = function (api, opts) {
           // Set the corejs version we are using to avoid warnings in console
           // This will need to change once we upgrade to corejs@3
           corejs: 3,
-          // Do not transform modules to CJS
-          modules: false,
           // Exclude transforms that make all code slower
           exclude: ['transform-typeof-symbol'],
         },