diff --git a/Libraries/Renderer/shims/ReactTypes.js b/Libraries/Renderer/shims/ReactTypes.js
deleted file mode 100644
index 2b87427cba8..00000000000
--- a/Libraries/Renderer/shims/ReactTypes.js
+++ /dev/null
@@ -1,192 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @flow
- */
-
-export type ReactNode =
-  | React$Element<any>
-  | ReactPortal
-  | ReactText
-  | ReactFragment
-  | ReactProvider<any>
-  | ReactConsumer<any>;
-
-export type ReactEmpty = null | void | boolean;
-
-export type ReactFragment = ReactEmpty | Iterable<React$Node>;
-
-export type ReactNodeList = ReactEmpty | React$Node;
-
-export type ReactText = string | number;
-
-export type ReactProvider<T> = {
-  $$typeof: Symbol | number,
-  type: ReactProviderType<T>,
-  key: null | string,
-  ref: null,
-  props: {
-    value: T,
-    children?: ReactNodeList,
-    ...
-  },
-  ...
-};
-
-export type ReactProviderType<T> = {
-  $$typeof: Symbol | number,
-  _context: ReactContext<T>,
-  ...
-};
-
-export type ReactConsumer<T> = {
-  $$typeof: Symbol | number,
-  type: ReactContext<T>,
-  key: null | string,
-  ref: null,
-  props: {
-    children: (value: T) => ReactNodeList,
-    unstable_observedBits?: number,
-    ...
-  },
-  ...
-};
-
-export type ReactContext<T> = {
-  $$typeof: Symbol | number,
-  Consumer: ReactContext<T>,
-  Provider: ReactProviderType<T>,
-  _calculateChangedBits: ((a: T, b: T) => number) | null,
-  _currentValue: T,
-  _currentValue2: T,
-  _threadCount: number,
-  // DEV only
-  _currentRenderer?: Object | null,
-  _currentRenderer2?: Object | null,
-  // This value may be added by application code
-  // to improve DEV tooling display names
-  displayName?: string,
-  ...
-};
-
-export type ReactPortal = {
-  $$typeof: Symbol | number,
-  key: null | string,
-  containerInfo: any,
-  children: ReactNodeList,
-  // TODO: figure out the API for cross-renderer implementation.
-  implementation: any,
-  ...
-};
-
-export type RefObject = {|
-  current: any,
-|};
-
-export type ReactEventResponderInstance<E, C> = {|
-  fiber: Object,
-  props: Object,
-  responder: ReactEventResponder<E, C>,
-  rootEventTypes: null | Set<string>,
-  state: Object,
-|};
-
-export type ReactEventResponderListener<E, C> = {|
-  props: Object,
-  responder: ReactEventResponder<E, C>,
-|};
-
-export type ReactEventResponder<E, C> = {
-  $$typeof: Symbol | number,
-  displayName: string,
-  targetEventTypes: null | Array<string>,
-  targetPortalPropagation: boolean,
-  rootEventTypes: null | Array<string>,
-  getInitialState: null | ((props: Object) => Object),
-  onEvent:
-    | null
-    | ((event: E, context: C, props: Object, state: Object) => void),
-  onRootEvent:
-    | null
-    | ((event: E, context: C, props: Object, state: Object) => void),
-  onMount: null | ((context: C, props: Object, state: Object) => void),
-  onUnmount: null | ((context: C, props: Object, state: Object) => void),
-  ...
-};
-
-export type EventPriority = 0 | 1 | 2;
-
-export const DiscreteEvent: EventPriority = 0;
-export const UserBlockingEvent: EventPriority = 1;
-export const ContinuousEvent: EventPriority = 2;
-
-export type ReactFundamentalComponentInstance<C, H> = {|
-  currentFiber: mixed,
-  instance: mixed,
-  prevProps: null | Object,
-  props: Object,
-  impl: ReactFundamentalImpl<C, H>,
-  state: Object,
-|};
-
-export type ReactFundamentalImpl<C, H> = {
-  displayName: string,
-  reconcileChildren: boolean,
-  getInitialState?: (props: Object) => Object,
-  getInstance: (context: C, props: Object, state: Object) => H,
-  getServerSideString?: (context: C, props: Object) => string,
-  getServerSideStringClose?: (context: C, props: Object) => string,
-  onMount: (context: C, instance: mixed, props: Object, state: Object) => void,
-  shouldUpdate?: (
-    context: C,
-    prevProps: null | Object,
-    nextProps: Object,
-    state: Object,
-  ) => boolean,
-  onUpdate?: (
-    context: C,
-    instance: mixed,
-    prevProps: null | Object,
-    nextProps: Object,
-    state: Object,
-  ) => void,
-  onUnmount?: (
-    context: C,
-    instance: mixed,
-    props: Object,
-    state: Object,
-  ) => void,
-  onHydrate?: (context: C, props: Object, state: Object) => boolean,
-  onFocus?: (context: C, props: Object, state: Object) => boolean,
-  ...
-};
-
-export type ReactFundamentalComponent<C, H> = {|
-  $$typeof: Symbol | number,
-  impl: ReactFundamentalImpl<C, H>,
-|};
-
-export type ReactScope = {|
-  $$typeof: Symbol | number,
-|};
-
-export type ReactScopeQuery = (
-  type: string,
-  props: {[string]: mixed, ...},
-  instance: mixed,
-) => boolean;
-
-export type ReactScopeMethods = {|
-  DO_NOT_USE_queryAllNodes(ReactScopeQuery): null | Array<Object>,
-  DO_NOT_USE_queryFirstNode(ReactScopeQuery): null | Object,
-  containsNode(Object): boolean,
-  getChildContextValues: <T>(context: ReactContext<T>) => Array<T>,
-|};
-
-export type ReactScopeInstance = {|
-  fiber: Object,
-  methods: null | ReactScopeMethods,
-|};