Remove deprecated methods from react-is (#28224)

These aren't being used anywhere and don't even correspond to real APIs.

DiffTrain build for [35b2c28](35b2c28)

Author: gaearon

compiled/facebook-www/REVISION

@@ -1 +1 @@
-d8c1fa6b0b8da0512cb5acab9cd4f242451392f3
+35b2c28178bf4f79898d11dce0bc2a7ce675f670

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

@@ -139,37 +139,6 @@ if (__DEV__) {
     var StrictMode = REACT_STRICT_MODE_TYPE;
     var Suspense = REACT_SUSPENSE_TYPE;
     var SuspenseList = REACT_SUSPENSE_LIST_TYPE;
-    var hasWarnedAboutDeprecatedIsAsyncMode = false;
-    var hasWarnedAboutDeprecatedIsConcurrentMode = false; // AsyncMode should be deprecated
-
-    function isAsyncMode(object) {
-      {
-        if (!hasWarnedAboutDeprecatedIsAsyncMode) {
-          hasWarnedAboutDeprecatedIsAsyncMode = true; // Using console['warn'] to evade Babel and ESLint
-
-          console["warn"](
-            "The ReactIs.isAsyncMode() alias has been deprecated, " +
-              "and will be removed in React 18+."
-          );
-        }
-      }
-
-      return false;
-    }
-    function isConcurrentMode(object) {
-      {
-        if (!hasWarnedAboutDeprecatedIsConcurrentMode) {
-          hasWarnedAboutDeprecatedIsConcurrentMode = true; // Using console['warn'] to evade Babel and ESLint
-
-          console["warn"](
-            "The ReactIs.isConcurrentMode() alias has been deprecated, " +
-              "and will be removed in React 18+."
-          );
-        }
-      }
-
-      return false;
-    }
     function isContextConsumer(object) {
       return typeOf(object) === REACT_CONTEXT_TYPE;
     }
@@ -223,8 +192,6 @@ if (__DEV__) {
     exports.StrictMode = StrictMode;
     exports.Suspense = Suspense;
     exports.SuspenseList = SuspenseList;
-    exports.isAsyncMode = isAsyncMode;
-    exports.isConcurrentMode = isConcurrentMode;
     exports.isContextConsumer = isContextConsumer;
     exports.isContextProvider = isContextProvider;
     exports.isElement = isElement;

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

@@ -139,37 +139,6 @@ if (__DEV__) {
     var StrictMode = REACT_STRICT_MODE_TYPE;
     var Suspense = REACT_SUSPENSE_TYPE;
     var SuspenseList = REACT_SUSPENSE_LIST_TYPE;
-    var hasWarnedAboutDeprecatedIsAsyncMode = false;
-    var hasWarnedAboutDeprecatedIsConcurrentMode = false; // AsyncMode should be deprecated
-
-    function isAsyncMode(object) {
-      {
-        if (!hasWarnedAboutDeprecatedIsAsyncMode) {
-          hasWarnedAboutDeprecatedIsAsyncMode = true; // Using console['warn'] to evade Babel and ESLint
-
-          console["warn"](
-            "The ReactIs.isAsyncMode() alias has been deprecated, " +
-              "and will be removed in React 18+."
-          );
-        }
-      }
-
-      return false;
-    }
-    function isConcurrentMode(object) {
-      {
-        if (!hasWarnedAboutDeprecatedIsConcurrentMode) {
-          hasWarnedAboutDeprecatedIsConcurrentMode = true; // Using console['warn'] to evade Babel and ESLint
-
-          console["warn"](
-            "The ReactIs.isConcurrentMode() alias has been deprecated, " +
-              "and will be removed in React 18+."
-          );
-        }
-      }
-
-      return false;
-    }
     function isContextConsumer(object) {
       return typeOf(object) === REACT_CONTEXT_TYPE;
     }
@@ -223,8 +192,6 @@ if (__DEV__) {
     exports.StrictMode = StrictMode;
     exports.Suspense = Suspense;
     exports.SuspenseList = SuspenseList;
-    exports.isAsyncMode = isAsyncMode;
-    exports.isConcurrentMode = isConcurrentMode;
     exports.isContextConsumer = isContextConsumer;
     exports.isContextProvider = isContextProvider;
     exports.isElement = isElement;

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

@@ -74,12 +74,6 @@ exports.Profiler = REACT_PROFILER_TYPE;
 exports.StrictMode = REACT_STRICT_MODE_TYPE;
 exports.Suspense = REACT_SUSPENSE_TYPE;
 exports.SuspenseList = REACT_SUSPENSE_LIST_TYPE;
-exports.isAsyncMode = function () {
-  return !1;
-};
-exports.isConcurrentMode = function () {
-  return !1;
-};
 exports.isContextConsumer = function (object) {
   return typeOf(object) === REACT_CONTEXT_TYPE;
 };

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

@@ -74,12 +74,6 @@ exports.Profiler = REACT_PROFILER_TYPE;
 exports.StrictMode = REACT_STRICT_MODE_TYPE;
 exports.Suspense = REACT_SUSPENSE_TYPE;
 exports.SuspenseList = REACT_SUSPENSE_LIST_TYPE;
-exports.isAsyncMode = function () {
-  return !1;
-};
-exports.isConcurrentMode = function () {
-  return !1;
-};
 exports.isContextConsumer = function (object) {
   return typeOf(object) === REACT_CONTEXT_TYPE;
 };