Remove react-native/packager folder.

Summary: This folder is not necessary any longer. All the code now lives in https://github.com/facebook/metro-bundler

Reviewed By: davidaurelio, jeanlauliac

Differential Revision: D5199196

fbshipit-source-id: 35bf0f10a9163f53426db9a76f8f853dceb69167

jest/preprocessor.js

@@ -13,17 +13,14 @@
 const babel = require('babel-core');
 const babelRegisterOnly = require('metro-bundler/build/babelRegisterOnly');
 const createCacheKeyFunction = require('fbjs-scripts/jest/createCacheKeyFunction');
-const path = require('path');
+const transformer = require('metro-bundler/build/transformer.js');
 
 const nodeFiles = RegExp([
   '/local-cli/',
-  '/packager/(?!src/Resolver/polyfills/)',
 ].join('|'));
 const nodeOptions = babelRegisterOnly.config([nodeFiles]);
 
 babelRegisterOnly([]);
-// has to be required after setting up babelRegisterOnly
-const transformer = require('metro-bundler/build/transformer.js');
 
 module.exports = {
   process(src/*: string*/, file/*: string*/) {
@@ -49,7 +46,7 @@ module.exports = {
 
   getCacheKey: createCacheKeyFunction([
     __filename,
-    path.join(__dirname, '../packager/src/transformer.js'),
+    require.resolve('metro-bundler/build/transformer.js'),
     require.resolve('babel-core/package.json'),
   ]),
 };

jest/setup.js

@@ -10,9 +10,9 @@
 
 const mockComponent = require.requireActual('./mockComponent');
 
-require.requireActual('../packager/src/Resolver/polyfills/babelHelpers.js');
-require.requireActual('../packager/src/Resolver/polyfills/Object.es7.js');
-require.requireActual('../packager/src/Resolver/polyfills/error-guard');
+require.requireActual('metro-bundler/build/Resolver/polyfills/babelHelpers.js');
+require.requireActual('metro-bundler/build/Resolver/polyfills/Object.es7.js');
+require.requireActual('metro-bundler/build/Resolver/polyfills/error-guard');
 
 global.__DEV__ = true;
 

local-cli/link/__tests__/ios/writePlist.spec.js

@@ -1,3 +1,12 @@
+/**
+ * Copyright (c) 2013-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';
 
 jest.autoMockOff();
@@ -16,11 +25,7 @@ const writePlist = require('../../ios/writePlist');
 const projectPath = path.join(__dirname, '../../__fixtures__/project.pbxproj');
 const infoPlistPath = path.join(__dirname, '../../__fixtures__/Info.plist');
 
-fs.__setMockFilesystem({
-  'Basic': {
-    'project.pbxproj': readFileSync(projectPath).toString(),
-  }
-});
+fs.readFileSync = jest.fn(() => readFileSync(projectPath).toString());
 
 const project = xcode.project('/Basic/project.pbxproj');