Remove flushSync from React Native (#12565)

There are no plans to enable async in the old renderer. In the new renderer it only really makes sense to do from the main thread and probably from native since it'll have to yield to native first.
facebook · Apr 7, 2018 · 6bf2797 · 6bf2797
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commit 6bf2797
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diff --git a/packages/react-native-renderer/src/ReactFabric.js b/packages/react-native-renderer/src/ReactFabric.js
@@ -77,8 +77,6 @@ const ReactFabric: ReactNativeType = {
 
  unstable_batchedUpdates: ReactGenericBatching.batchedUpdates,
 
- flushSync: ReactFabricRenderer.flushSync,
-
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
  // Used as a mixin in many createClass-based components
  NativeMethodsMixin,

diff --git a/packages/react-native-renderer/src/ReactNativeRenderer.js b/packages/react-native-renderer/src/ReactNativeRenderer.js
@@ -96,8 +96,6 @@ const ReactNativeRenderer: ReactNativeType = {
 
  unstable_batchedUpdates: ReactGenericBatching.batchedUpdates,
 
- flushSync: ReactNativeFiberRenderer.flushSync,
-
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
  // Used as a mixin in many createClass-based components
  NativeMethodsMixin,