diff --git a/Libraries/Utilities/throwOnWrongReactAPI.js b/Libraries/Utilities/throwOnWrongReactAPI.js
deleted file mode 100644
index 4685a4071..000000000
--- a/Libraries/Utilities/throwOnWrongReactAPI.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/**
- * Copyright (c) 2015-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.
- *
- * @providesModule throwOnWrongReactAPI
- * @flow
- */
-
-'use strict';
-
-function throwOnWrongReactAPI(key: string) {
-  throw new Error(
-`Seems you're trying to access 'ReactNative.${key}' from the 'react-native' package. Perhaps you meant to access 'React.${key}' from the 'react' package instead?
-
-For example, instead of:
-
-  import React, { Component, View } from 'react-native';
-
-You should now do:
-
-  import React, { Component } from 'react';
-  import { View } from 'react-native';
-
-Check the release notes on how to upgrade your code - https://github.com/facebook/react-native/releases/tag/v0.25.1
-`);
-}
-
-module.exports = throwOnWrongReactAPI;
diff --git a/Libraries/react-native/react-native-implementation.js b/Libraries/react-native/react-native-implementation.js
index e38853640..e836ee7e1 100644
--- a/Libraries/react-native/react-native-implementation.js
+++ b/Libraries/react-native/react-native-implementation.js
@@ -124,43 +124,4 @@ const ReactNative = {
   },
 };
 
-// Better error messages when accessing React APIs on ReactNative
-if (__DEV__) {
-  const throwOnWrongReactAPI = require('throwOnWrongReactAPI');
-  const reactAPIs = [ 'createClass', 'Component' ];
-
-  for (const key of reactAPIs) {
-    Object.defineProperty(ReactNative, key, {
-      get() { throwOnWrongReactAPI(key); },
-      enumerable: false,
-      configurable: false,
-    });
-  }
-}
-
-// Preserve getters with warnings on the internal ReactNative copy without
-// invoking them.
-const ReactNativeInternal = require('ReactNative');
-function applyForwarding(key) {
-  if (__DEV__) {
-    Object.defineProperty(
-      ReactNative,
-      key,
-      Object.getOwnPropertyDescriptor(ReactNativeInternal, key)
-    );
-    return;
-  }
-    if (ReactNative.hasOwnProperty(key)) {
-      // WARNING! ReactNative has read-only keys. So, if ReactNativeInternal
-      // has any duplicate key that ReactNative already has, this assignment
-      // would fail with "Attempted to assign to readonly property."
-      // So, if the key already exists on ReactNative, we assume that it's the
-      // correct module and skip re-assigning it.
-      return;
-    }
-  ReactNative[key] = ReactNativeInternal[key];
-}
-for (const key in ReactNativeInternal) {
-  applyForwarding(key);
-}
 module.exports = ReactNative;