Remove some unused methods

When Float was first implemented the HostDispatcher was set and unset during each render. Now that we support dispatching globally the host extensions that did this Dispatcher shuffling is now a noop. Since these methods exist in all HostConfigs and they noop everywhere now we shoudl just remove them.

packages/react-art/src/ReactARTHostConfig.js

@@ -475,11 +475,3 @@ export function suspendInstance(type, props) {}
 export function waitForCommitToBeReady() {
   return null;
 }
-// eslint-disable-next-line no-undef
-export function prepareRendererToRender(container: Container): void {
-  // noop
-}
-
-export function resetRendererAfterRender(): void {
-  // noop
-}

packages/react-dom-bindings/src/client/ReactDOMHostConfig.js

@@ -1931,16 +1931,6 @@ export function prepareToCommitHoistables() {
   tagCaches = null;
 }
 
-// It is valid to preload even when we aren't actively rendering. For cases where Float functions are
-// called when there is no rendering we track the last used document. It is not safe to insert
-// arbitrary resources into the lastCurrentDocument b/c it may not actually be the document
-// that the resource is meant to apply too (for example stylesheets or scripts). This is only
-// appropriate for resources that don't really have a strict tie to the document itself for example
-// preloads
-export function prepareRendererToRender(rootContainer: Container) {}
-
-export function resetRendererAfterRender() {}
-
 // global collections of Resources
 const preloadPropsMap: Map<string, PreloadProps> = new Map();
 const preconnectsSet: Set<string> = new Set();

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

@@ -466,11 +466,3 @@ export function suspendInstance(type: Type, props: Props): void {}
 export function waitForCommitToBeReady(): null {
   return null;
 }
-
-export function prepareRendererToRender(container: Container): void {
-  // noop
-}
-
-export function resetRendererAfterRender() {
-  // noop
-}

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

@@ -538,11 +538,3 @@ export function suspendInstance(type: Type, props: Props): void {}
 export function waitForCommitToBeReady(): null {
   return null;
 }
-
-export function prepareRendererToRender(container: Container): void {
-  // noop
-}
-
-export function resetRendererAfterRender(): void {
-  // noop
-}

packages/react-noop-renderer/src/createReactNoop.js

@@ -630,9 +630,6 @@ function createReactNoop(reconciler: Function, useMutation: boolean) {
     },
 
     waitForCommitToBeReady,
-
-    prepareRendererToRender() {},
-    resetRendererAfterRender() {},
   };
 
   const hostConfig = useMutation

packages/react-reconciler/src/ReactFiberWorkLoop.js

@@ -72,8 +72,6 @@ import {
   afterActiveInstanceBlur,
   getCurrentEventPriority,
   errorHydratingContainer,
-  prepareRendererToRender,
-  resetRendererAfterRender,
   startSuspendingCommit,
   waitForCommitToBeReady,
   preloadInstance,
@@ -1850,7 +1848,6 @@ export function shouldRemainOnPreviousScreen(): boolean {
 }
 
 function pushDispatcher(container: any) {
-  prepareRendererToRender(container);
   const prevDispatcher = ReactCurrentDispatcher.current;
   ReactCurrentDispatcher.current = ContextOnlyDispatcher;
   if (prevDispatcher === null) {
@@ -1864,7 +1861,6 @@ function pushDispatcher(container: any) {
 }
 
 function popDispatcher(prevDispatcher: any) {
-  resetRendererAfterRender();
   ReactCurrentDispatcher.current = prevDispatcher;
 }
 

packages/react-reconciler/src/__tests__/ReactFiberHostContext-test.internal.js

@@ -82,8 +82,6 @@ describe('ReactFiberHostContext', () => {
       waitForCommitToBeReady() {
         return null;
       },
-      prepareRendererToRender: function () {},
-      resetRendererAfterRender: function () {},
       supportsMutation: true,
     });
 

packages/react-reconciler/src/forks/ReactFiberHostConfig.custom.js

@@ -73,8 +73,6 @@ export const preloadInstance = $$$hostConfig.preloadInstance;
 export const startSuspendingCommit = $$$hostConfig.startSuspendingCommit;
 export const suspendInstance = $$$hostConfig.suspendInstance;
 export const waitForCommitToBeReady = $$$hostConfig.waitForCommitToBeReady;
-export const prepareRendererToRender = $$$hostConfig.prepareRendererToRender;
-export const resetRendererAfterRender = $$$hostConfig.resetRendererAfterRender;
 
 // -------------------
 //      Microtasks

packages/react-test-renderer/src/ReactTestHostConfig.js

@@ -340,11 +340,3 @@ export function suspendInstance(type: Type, props: Props): void {}
 export function waitForCommitToBeReady(): null {
   return null;
 }
-
-export function prepareRendererToRender(container: Container): void {
-  // noop
-}
-
-export function resetRendererAfterRender(): void {
-  // noop
-}