diff --git a/Libraries/Interaction/InteractionManager.js b/Libraries/Interaction/InteractionManager.js
index 845df4d89..c4216344c 100644
--- a/Libraries/Interaction/InteractionManager.js
+++ b/Libraries/Interaction/InteractionManager.js
@@ -19,7 +19,6 @@ const TaskQueue = require('TaskQueue');
 const infoLog = require('infoLog');
 const invariant = require('fbjs/lib/invariant');
 const keyMirror = require('fbjs/lib/keyMirror');
-const setImmediate = require('setImmediate');
 
 type Handle = number;
 import type {Task} from 'TaskQueue';
@@ -152,6 +151,8 @@ let _nextUpdateHandle = 0;
 let _inc = 0;
 let _deadline = -1;
 
+declare function setImmediate(callback: any, ...args: Array<any>): number;
+
 /**
  * Schedule an asynchronous update to the interaction state.
  */
diff --git a/Libraries/vendor/core/clearImmediate.js b/Libraries/vendor/core/clearImmediate.js
deleted file mode 100644
index 75540149f..000000000
--- a/Libraries/vendor/core/clearImmediate.js
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * 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.
- *
- * @providesModule clearImmediate
- */
-
-module.exports = global.clearImmediate;
diff --git a/Libraries/vendor/core/setImmediate.js b/Libraries/vendor/core/setImmediate.js
deleted file mode 100644
index 265f98a45..000000000
--- a/Libraries/vendor/core/setImmediate.js
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * 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.
- *
- * @providesModule setImmediate
- */
-
-module.exports = global.setImmediate;
diff --git a/Libraries/vendor/core/throwImmediate.js b/Libraries/vendor/core/throwImmediate.js
deleted file mode 100644
index 0d12c3097..000000000
--- a/Libraries/vendor/core/throwImmediate.js
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- * @generated SignedSource<<5c985f16e4f2e576657ab2b1551adf97>>
- *
- * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- * !! This file is a check-in of a static_upstream project!      !!
- * !!                                                            !!
- * !! You should not modify this file directly. Instead:         !!
- * !! 1) Use `fjs use-upstream` to temporarily replace this with !!
- * !!    the latest version from upstream.                       !!
- * !! 2) Make your changes, test them, etc.                      !!
- * !! 3) Use `fjs push-upstream` to copy your changes back to    !!
- * !!    static_upstream.                                        !!
- * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- *
- * Copyright 2004-present Facebook. All Rights Reserved.
- *
- * @providesModule throwImmediate
- * @typechecks
- */
-
-'use strict';
-
-var setImmediate = require('setImmediate');
-
-function throwArg(error) {
-  throw error;
-}
-
-/**
- * Throws the supplied error in a new execution loop.
- *
- * @param {*} error
- */
-function throwImmediate(error) {
-  setImmediate(throwArg, error);
-}
-
-module.exports = throwImmediate;