Cleanup enableAnimatedClearImmediateFix (#49787)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49787

We're not experimenting with this, so cleanup the code.

Changelog: [Internal]

Reviewed By: fabriziocucci

Differential Revision: D70488980

fbshipit-source-id: 12e93b7f8fb89e3bb1f06c8f734b782286f3fad3

packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js

@@ -562,17 +562,6 @@ const definitions: FeatureFlagDefinitions = {
       },
       ossReleaseStage: 'none',
     },
-    enableAnimatedClearImmediateFix: {
-      defaultValue: true,
-      metadata: {
-        dateAdded: '2024-09-17',
-        description:
-          'Enables an experimental to use the proper clearIntermediate instead of calling the wrong clearTimeout and canceling another timer.',
-        expectedReleaseValue: true,
-        purpose: 'experimentation',
-      },
-      ossReleaseStage: 'none',
-    },
     enableDOMDocumentAPI: {
       defaultValue: false,
       metadata: {

packages/react-native/src/private/animated/NativeAnimatedHelper.js

@@ -144,11 +144,7 @@ const API = {
       ReactNativeFeatureFlags.animatedShouldDebounceQueueFlush() &&
       flushQueueImmediate
     ) {
-      if (ReactNativeFeatureFlags.enableAnimatedClearImmediateFix()) {
-        clearImmediate(flushQueueImmediate);
-      } else {
-        clearTimeout(flushQueueImmediate);
-      }
+      clearImmediate(flushQueueImmediate);
     }
   },
 

packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<3e68d888bf4d8ac71b63571a639d265b>>
+ * @generated SignedSource<<857c807934fc671129d3c85605de7171>>
  * @flow strict
  */
 
@@ -33,7 +33,6 @@ export type ReactNativeFeatureFlagsJsOnly = $ReadOnly<{
   avoidStateUpdateInAnimatedPropsMemo: Getter<boolean>,
   disableInteractionManager: Getter<boolean>,
   enableAccessToHostTreeInFabric: Getter<boolean>,
-  enableAnimatedClearImmediateFix: Getter<boolean>,
   enableDOMDocumentAPI: Getter<boolean>,
   fixVirtualizeListCollapseWindowSize: Getter<boolean>,
   isLayoutAnimationEnabled: Getter<boolean>,
@@ -124,11 +123,6 @@ export const disableInteractionManager: Getter<boolean> = createJavaScriptFlagGe
  */
 export const enableAccessToHostTreeInFabric: Getter<boolean> = createJavaScriptFlagGetter('enableAccessToHostTreeInFabric', false);
 
-/**
- * Enables an experimental to use the proper clearIntermediate instead of calling the wrong clearTimeout and canceling another timer.
- */
-export const enableAnimatedClearImmediateFix: Getter<boolean> = createJavaScriptFlagGetter('enableAnimatedClearImmediateFix', true);
-
 /**
  * Enables the DOM Document API, exposing instaces of document through `getRootNode` and `ownerDocument`, and providing access to the `documentElement` representing the root node. This flag will be short-lived, only to test the Document API specifically, and then it will be collapsed into the enableAccessToHostTreeInFabric flag.
  */