Don't support older isomorphic React with newer renderers (facebook#18329)

* Don't support older isomorphic React with newer renderers

* Remove the lazy hack

Author: gaearon

packages/react-art/package.json

@@ -29,7 +29,7 @@
     "scheduler": "^0.19.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0"
+    "react": "^16.13.0"
   },
   "files": [
     "LICENSE",

packages/react-dom/package.json

@@ -22,7 +22,7 @@
     "scheduler": "^0.19.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0"
+    "react": "^16.13.0"
   },
   "files": [
     "LICENSE",

packages/react-noop-renderer/package.json

@@ -18,7 +18,7 @@
     "react-server": "*"
   },
   "peerDependencies": {
-    "react": "^16.0.0"
+    "react": "^16.13.0"
   },
   "files": [
     "LICENSE",

packages/react-reconciler/package.json

@@ -26,7 +26,7 @@
     "node": ">=0.10.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0"
+    "react": "^16.13.0"
   },
   "dependencies": {
     "loose-envify": "^1.1.0",

packages/react-test-renderer/package.json

@@ -25,7 +25,7 @@
     "scheduler": "^0.19.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0"
+    "react": "^16.13.0"
   },
   "files": [
     "LICENSE",

packages/shared/ReactLazyComponent.js

@@ -38,11 +38,7 @@ export function initializeLazyComponentType(
   lazyComponent: LazyComponent<any>,
 ): void {
   if (lazyComponent._status === Uninitialized) {
-    let ctor = lazyComponent._result;
-    if (!ctor) {
-      // TODO: Remove this later. THis only exists in case you use an older "react" package.
-      ctor = ((lazyComponent: any)._ctor: typeof ctor);
-    }
+    const ctor = lazyComponent._result;
     const thenable = ctor();
     // Transition to the next state.
     const pending: PendingLazyComponent<any> = (lazyComponent: any);

packages/shared/ReactSharedInternals.js

@@ -12,18 +12,4 @@ import * as React from 'react';
 const ReactSharedInternals =
   React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
 
-// Prevent newer renderers from RTE when used with older react package versions.
-// Current owner and dispatcher used to share the same ref,
-// but PR #14548 split them out to better support the react-debug-tools package.
-if (!ReactSharedInternals.hasOwnProperty('ReactCurrentDispatcher')) {
-  ReactSharedInternals.ReactCurrentDispatcher = {
-    current: null,
-  };
-}
-if (!ReactSharedInternals.hasOwnProperty('ReactCurrentBatchConfig')) {
-  ReactSharedInternals.ReactCurrentBatchConfig = {
-    suspense: null,
-  };
-}
-
 export default ReactSharedInternals;