Replace uppercase React import with lowercase one

Reviewed By: panagosg7

Differential Revision: D51406850

fbshipit-source-id: cbebefe74b48cd3229c3476b6c4c17282868efbb

Author: SamChou19815

packages/react-relay/relay-hooks/EntryPointTypes.flow.js

@@ -14,7 +14,7 @@
 /* eslint-disable no-unused-vars */
 
 import type {JSResourceReference} from 'JSResourceReference';
-import type {AbstractComponent, ElementConfig} from 'React';
+import type {AbstractComponent, ElementConfig} from 'react';
 import type {
   CacheConfig,
   FetchPolicy,

packages/relay-test-utils/unwrapContainer.js

@@ -11,7 +11,6 @@
 
 'use strict';
 
-import type React from 'React';
 import type {
   $RelayProps,
   RelayPaginationProp,
@@ -25,10 +24,10 @@ const invariant = require('invariant');
  * Returns original component class wrapped by e.g. createFragmentContainer
  */
 function unwrapContainer<Props>(
-  ComponentClass: React.ComponentType<
+  ComponentClass: React$ComponentType<
     $RelayProps<Props, RelayProp | RelayPaginationProp | RelayRefetchProp>,
   >,
-): React.ComponentType<Props> {
+): React$ComponentType<Props> {
   // $FlowExpectedError
   const unwrapped = ComponentClass.__ComponentClass;
   invariant(