Delete ReactNativeStack 🎉 🎉 🎉 (#10511)

* Removed createReactNativeComponentClassStack and renamed createReactNativeComponentClassFiber => createReactNativeComponentClass

* Removed findNumericNodeHandleStack and renamed findNumericNodeHandleFiber => findNumericNodeHandle

* Renamed ReactNativeFiberEntry => ReactNativeEntry

* Removed all references to ReactNativeFeatureFlags and RN stack

* Removed severl RN modules that are no longer used

* Renamed ReactNativeEntry => ReactNativeFiberEntry for now. We'll probably remove 'fiber' references later

* Update build results json

* Deleted snapshot

* Re-add accidentally deleted test

* Remove now-unnecessary hack in test

* Fix lint

* RN findNodeHandle no longer adds props directly to read-only owner (#10520)

* Added ReactNativeMount-test snapshot for 'renders and reorders children' test

src/renderers/native/createReactNativeComponentClass.js

@@ -12,7 +12,7 @@
 
 'use strict';
 
-const ReactNativeFeatureFlags = require('ReactNativeFeatureFlags');
+const ReactNativeViewConfigRegistry = require('ReactNativeViewConfigRegistry');
 
 // See also ReactNativeBaseComponent
 export type ReactNativeBaseComponentViewConfig = {
@@ -21,6 +21,14 @@ export type ReactNativeBaseComponentViewConfig = {
   propTypes?: Object,
 };
 
-module.exports = ReactNativeFeatureFlags.useFiber
-  ? require('createReactNativeComponentClassFiber')
-  : require('createReactNativeComponentClassStack');
+/**
+ * @param {string} config iOS View configuration.
+ * @private
+ */
+const createReactNativeComponentClass = function(
+  viewConfig: ReactNativeBaseComponentViewConfig,
+): string {
+  return ReactNativeViewConfigRegistry.register(viewConfig);
+};
+
+module.exports = createReactNativeComponentClass;