[RN] Remove unstable_batchedUpdates and unmountComponentAtNodeAndRemo…

…veContainer from Fabric (#12571)

These don't make much sense in Fabric, since Fabric will be async by default only.

And unmount+remove container is a sketchy API we should remove so we might
as well make sure modern containers enforce that.

packages/react-native-renderer/src/ReactFabric.js

@@ -7,7 +7,7 @@
  * @flow
  */
 
-import type {ReactNativeType} from './ReactNativeTypes';
+import type {ReactFabricType} from './ReactNativeTypes';
 import type {ReactNodeList} from 'shared/ReactTypes';
 
 import './ReactFabricInjection';
@@ -32,7 +32,7 @@ ReactGenericBatching.injection.injectRenderer(ReactFabricRenderer);
 
 const roots = new Map();
 
-const ReactFabric: ReactNativeType = {
+const ReactFabric: ReactFabricType = {
  NativeComponent: ReactNativeComponent,
 
  findNodeHandle: findNumericNodeHandle,
@@ -61,10 +61,6 @@ const ReactFabric: ReactNativeType = {
  }
  },
 
- unmountComponentAtNodeAndRemoveContainer(containerTag: number) {
- ReactFabric.unmountComponentAtNode(containerTag);
- },
-
  createPortal(
  children: ReactNodeList,
  containerTag: number,
@@ -73,8 +69,6 @@ const ReactFabric: ReactNativeType = {
  return ReactPortal.createPortal(children, containerTag, null, key);
  },
 
- unstable_batchedUpdates: ReactGenericBatching.batchedUpdates,
-
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
  // Used as a mixin in many createClass-based components
  NativeMethodsMixin,

packages/react-native-renderer/src/ReactNativeTypes.js

@@ -103,3 +103,16 @@ export type ReactNativeType = {
 
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: SecretInternalsType,
 };
+
+export type ReactFabricType = {
+ NativeComponent: any,
+ findNodeHandle(componentOrHandle: any): ?number,
+ render(
+ element: React$Element<any>,
+ containerTag: any,
+ callback: ?Function,
+ ): any,
+ unmountComponentAtNode(containerTag: number): any,
+
+ __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: SecretInternalsType,
+};