react-native: move out the hardcoded import() transform

Reviewed By: davidaurelio

Differential Revision: D6196869

fbshipit-source-id: 237cd269a2f382851102e3e1ba3208f1460f8c0a

babel-preset/configs/main.js

@@ -76,9 +76,6 @@ const getPreset = (src, options) => {
   ) {
     plugins.push('transform-react-display-name');
   }
-  if (isNull || src.indexOf('import(')) {
-    plugins.push(require('../transforms/transform-dynamic-import'));
-  }
 
   if (options && options.dev) {
     plugins.push('transform-react-jsx-source');

babel-preset/transforms/transform-dynamic-import.js

@@ -1,32 +0,0 @@
-/**
- * Copyright (c) 2016-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-'use strict';
-
-const template = require('babel-template');
-
-const buildImport = template('Promise.resolve().then(() => require(ARGS))');
-
-const TYPE_IMPORT = 'Import';
-
-const plugin = {
-  inherits: require('babel-plugin-syntax-dynamic-import'),
-
-  visitor: {
-    CallExpression(path) {
-      if (path.node.callee.type !== TYPE_IMPORT) {
-        return;
-      }
-      const newImport = buildImport({ARGS: path.node.arguments});
-      path.replaceWith(newImport);
-    },
-  },
-};
-
-module.exports = plugin;