remove unstable_renderSubtreeIntoContainer (#29771)

remove unstable_renderSubtreeIntoContainer

This is finally no longer used and can be deleted.

DiffTrain build for [93826c8](93826c8)

Author: kassens

compiled/facebook-www/REVISION

@@ -1 +1 @@
-383b2a18456215d2d3ec46f33c0c912e84efa08f
+93826c8483ffaf6676c437c25619d82f13444413

compiled/facebook-www/REVISION_TRANSFORMS

@@ -1 +1 @@
-383b2a18456215d2d3ec46f33c0c912e84efa08f
+93826c8483ffaf6676c437c25619d82f13444413

compiled/facebook-www/React-dev.classic.js

@@ -1987,7 +1987,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.0.0-www-classic-383b2a1845-20240611";
+    exports.version = "19.0.0-www-classic-93826c8483-20240612";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-dev.modern.js

@@ -1967,7 +1967,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.0.0-www-modern-383b2a1845-20240611";
+    exports.version = "19.0.0-www-modern-93826c8483-20240612";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-prod.classic.js

@@ -665,4 +665,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-383b2a1845-20240611";
+exports.version = "19.0.0-www-classic-93826c8483-20240612";

compiled/facebook-www/React-prod.modern.js

@@ -665,4 +665,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-383b2a1845-20240611";
+exports.version = "19.0.0-www-modern-93826c8483-20240612";

compiled/facebook-www/React-profiling.classic.js

@@ -669,7 +669,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-383b2a1845-20240611";
+exports.version = "19.0.0-www-classic-93826c8483-20240612";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-profiling.modern.js

@@ -669,7 +669,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-383b2a1845-20240611";
+exports.version = "19.0.0-www-modern-93826c8483-20240612";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/ReactART-dev.classic.js

@@ -16415,14 +16415,6 @@ __DEV__ &&
     var didWarnAboutContextTypeAndContextTypes = new Set();
     var didWarnAboutInvalidateContextType = new Set();
     var didWarnOnInvalidCallback = new Set();
-    Object.defineProperty(fakeInternalInstance, "_processChildContext", {
-      enumerable: !1,
-      value: function () {
-        throw Error(
-          "_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn't supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal)."
-        );
-      }
-    });
     Object.freeze(fakeInternalInstance);
     var classComponentUpdater = {
       isMounted: function (component) {
@@ -16942,14 +16934,14 @@ __DEV__ &&
         scheduleRoot: scheduleRoot,
         setRefreshHandler: setRefreshHandler,
         getCurrentFiber: getCurrentFiberForDevTools,
-        reconcilerVersion: "19.0.0-www-classic-383b2a1845-20240611"
+        reconcilerVersion: "19.0.0-www-classic-93826c8483-20240612"
       });
     })({
       findFiberByHostInstance: function () {
         return null;
       },
       bundleType: 1,
-      version: "19.0.0-www-classic-383b2a1845-20240611",
+      version: "19.0.0-www-classic-93826c8483-20240612",
       rendererPackageName: "react-art"
     });
     var ClippingRectangle = TYPES.CLIPPING_RECTANGLE,

compiled/facebook-www/ReactART-dev.modern.js

@@ -15846,14 +15846,6 @@ __DEV__ &&
     var didWarnAboutUndefinedDerivedState = new Set();
     var didWarnAboutInvalidateContextType = new Set();
     var didWarnOnInvalidCallback = new Set();
-    Object.defineProperty(fakeInternalInstance, "_processChildContext", {
-      enumerable: !1,
-      value: function () {
-        throw Error(
-          "_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn't supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal)."
-        );
-      }
-    });
     Object.freeze(fakeInternalInstance);
     var classComponentUpdater = {
       isMounted: function (component) {
@@ -16372,14 +16364,14 @@ __DEV__ &&
         scheduleRoot: scheduleRoot,
         setRefreshHandler: setRefreshHandler,
         getCurrentFiber: getCurrentFiberForDevTools,
-        reconcilerVersion: "19.0.0-www-modern-383b2a1845-20240611"
+        reconcilerVersion: "19.0.0-www-modern-93826c8483-20240612"
       });
     })({
       findFiberByHostInstance: function () {
         return null;
       },
       bundleType: 1,
-      version: "19.0.0-www-modern-383b2a1845-20240611",
+      version: "19.0.0-www-modern-93826c8483-20240612",
       rendererPackageName: "react-art"
     });
     var ClippingRectangle = TYPES.CLIPPING_RECTANGLE,