Keep unconditional FB export

Author: eps1lon

packages/react/src/ReactServer.fb.js

@@ -7,8 +7,6 @@
  * @flow
  */
 
-import {enableViewTransition} from 'shared/ReactFeatureFlags';
-
 export {default as __SERVER_INTERNALS_DO_NOT_USE_OR_WARN_USERS_THEY_CANNOT_UPGRADE} from './ReactSharedInternalsServer';
 
 import {forEach, map, count, toArray, only} from './ReactChildren';
@@ -48,20 +46,15 @@ if (__DEV__) {
   captureOwnerStack = captureOwnerStackImpl;
 }
 
-let ViewTransition: ?symbol;
-if (enableViewTransition) {
-  ViewTransition = REACT_VIEW_TRANSITION_TYPE;
-}
-
 export {
   Children,
   REACT_ACTIVITY_TYPE as Activity,
   REACT_FRAGMENT_TYPE as Fragment,
   REACT_PROFILER_TYPE as Profiler,
   REACT_STRICT_MODE_TYPE as StrictMode,
   REACT_SUSPENSE_TYPE as Suspense,
-  ViewTransition,
-  ViewTransition as unstable_ViewTransition,
+  REACT_VIEW_TRANSITION_TYPE as ViewTransition,
+  REACT_VIEW_TRANSITION_TYPE as unstable_ViewTransition,
   cloneElement,
   createElement,
   createRef,