clean up isInputPending in Scheduler (#28444)

## Summary

`isInputPending` is not in use. This PR cleans up the flags controlling
its gating and parameters to simplify Scheduler.

Makes `frameYieldMs` feature flag static, set to 10ms in www, which we
found built on the wins provided by a broader yield interval via
`isInputPending`. Flag remains set to 5ms in OSS builds.

## How did you test this change?
`yarn test Scheduler`

DiffTrain build for commit 3bcd2de.

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js

@@ -25733,7 +25733,7 @@ if (__DEV__) {
       return root;
     }
 
-    var ReactVersion = "18.3.0-canary-172a7f629-20240226";
+    var ReactVersion = "18.3.0-canary-3bcd2de01-20240227";
 
     // Might add PROFILE later.
 

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js

@@ -9171,7 +9171,7 @@ var devToolsConfig$jscomp$inline_1014 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-172a7f629-20240226",
+  version: "18.3.0-canary-3bcd2de01-20240227",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1195 = {
@@ -9202,7 +9202,7 @@ var internals$jscomp$inline_1195 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-172a7f629-20240226"
+  reconcilerVersion: "18.3.0-canary-3bcd2de01-20240227"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1196 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js

@@ -9599,7 +9599,7 @@ var devToolsConfig$jscomp$inline_1056 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-172a7f629-20240226",
+  version: "18.3.0-canary-3bcd2de01-20240227",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1236 = {
@@ -9630,7 +9630,7 @@ var internals$jscomp$inline_1236 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-172a7f629-20240226"
+  reconcilerVersion: "18.3.0-canary-3bcd2de01-20240227"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1237 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js

@@ -26,7 +26,7 @@ if (__DEV__) {
     }
     var dynamicFlags = require("ReactNativeInternalFeatureFlags");
 
-    var ReactVersion = "18.3.0-canary-172a7f629-20240226";
+    var ReactVersion = "18.3.0-canary-3bcd2de01-20240227";
 
     // ATTENTION
     // When adding new symbols to this file,

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js

@@ -598,4 +598,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-172a7f629-20240226";
+exports.version = "18.3.0-canary-3bcd2de01-20240227";

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js

@@ -594,7 +594,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-172a7f629-20240226";
+exports.version = "18.3.0-canary-3bcd2de01-20240227";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/scheduler/cjs/Scheduler-dev.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<329119982dc400f73a57d3f8fddc6fb4>>
+ * @generated SignedSource<<58af4bb9ea8656229bd048421236ac87>>
  */
 
 "use strict";
@@ -162,12 +162,6 @@ if (__DEV__) {
     var localSetImmediate =
       typeof setImmediate !== "undefined" ? setImmediate : null; // IE and Node.js + jsdom
 
-    typeof navigator !== "undefined" && // $FlowFixMe[prop-missing]
-    navigator.scheduling !== undefined && // $FlowFixMe[incompatible-type]
-    navigator.scheduling.isInputPending !== undefined
-      ? navigator.scheduling.isInputPending.bind(navigator.scheduling)
-      : null;
-
     function advanceTimers(currentTime) {
       // Check for tasks that are no longer delayed and add them to the queue.
       var timer = peek(timerQueue);
@@ -490,7 +484,7 @@ if (__DEV__) {
         // The main thread has only been blocked for a really short amount of time;
         // smaller than a single frame. Don't yield yet.
         return false;
-      } // The main thread has been blocked for a non-negligible amount of time. We
+      } // Yield now.
 
       return true;
     }
@@ -540,7 +534,7 @@ if (__DEV__) {
             isMessageLoopRunning = false;
           }
         }
-      } // Yielding to the browser will give it a chance to paint, so we can
+      }
     };
 
     var schedulePerformWorkUntilDeadline;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/scheduler/cjs/Scheduler-prod.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<cd7ed3a069445a95189053c07769d208>>
+ * @generated SignedSource<<cff8a50048229c976ba8e49d76cca4f5>>
  */
 
 "use strict";
@@ -83,11 +83,6 @@ var taskQueue = [],
   localSetTimeout = "function" === typeof setTimeout ? setTimeout : null,
   localClearTimeout = "function" === typeof clearTimeout ? clearTimeout : null,
   localSetImmediate = "undefined" !== typeof setImmediate ? setImmediate : null;
-"undefined" !== typeof navigator &&
-void 0 !== navigator.scheduling &&
-void 0 !== navigator.scheduling.isInputPending
-  ? navigator.scheduling.isInputPending.bind(navigator.scheduling)
-  : null;
 function advanceTimers(currentTime) {
   for (var timer = peek(timerQueue); null !== timer; ) {
     if (null === timer.callback) pop(timerQueue);

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/scheduler/cjs/Scheduler-profiling.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<685fe42d89ad677c0374d643bebb57cd>>
+ * @generated SignedSource<<2a1458dad9404c5aa87cab9701762eca>>
  */
 
 "use strict";
@@ -87,11 +87,6 @@ var taskQueue = [],
   localSetTimeout = "function" === typeof setTimeout ? setTimeout : null,
   localClearTimeout = "function" === typeof clearTimeout ? clearTimeout : null,
   localSetImmediate = "undefined" !== typeof setImmediate ? setImmediate : null;
-"undefined" !== typeof navigator &&
-void 0 !== navigator.scheduling &&
-void 0 !== navigator.scheduling.isInputPending
-  ? navigator.scheduling.isInputPending.bind(navigator.scheduling)
-  : null;
 function advanceTimers(currentTime) {
   for (var timer = peek(timerQueue); null !== timer; ) {
     if (null === timer.callback) pop(timerQueue);

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION

@@ -1 +1 @@
-172a7f629a972fedb9e43fbae4fad0e9b1dc7fee
+3bcd2de01b5716202eabe8faa338f51bdc59ce26