Rollout enableFabricPendingEventQueue feature flag (facebook#44208)

Summary:
Pull Request resolved: facebook#44208

Changelog: [Internal]

Reviewed By: rubennorte

Differential Revision: D56467342

fbshipit-source-id: 0461b16727af708769af363125bf51c0761c9505

Author: javache

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -1927,7 +1927,6 @@ public class com/facebook/react/config/ReactFeatureFlags {
 	public static field enableCppPropsIteratorSetter Z
 	public static field enableEagerRootViewAttachment Z
 	public static field enableFabricLogs Z
-	public static field enableFabricPendingEventQueue Z
 	public static field enableFabricRenderer Z
 	public static field enableFabricRendererExclusively Z
 	public static field enableRemoveDeleteTreeInstruction Z

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/config/ReactFeatureFlags.java

@@ -83,9 +83,6 @@ public class ReactFeatureFlags {
   /** Feature Flag to enable a cache of Spannable objects used by TextLayoutManagerMapBuffer */
   public static boolean enableTextSpannableCache = false;
 
-  /** Feature Flag to enable the pending event queue in fabric before mounting views */
-  public static boolean enableFabricPendingEventQueue = false;
-
   /**
    * Feature Flag to enable View Recycling. When enabled, individual ViewManagers must still opt-in.
    */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/defaults/DefaultNewArchitectureEntryPoint.kt

@@ -44,7 +44,6 @@ public object DefaultNewArchitectureEntryPoint {
     ReactFeatureFlags.unstable_useFabricInterop = fabricEnabled
     ReactFeatureFlags.enableBridgelessArchitecture = bridgelessEnabled
     ReactFeatureFlags.unstable_useTurboModuleInterop = bridgelessEnabled
-    ReactFeatureFlags.enableFabricPendingEventQueue = fabricEnabled
 
     if (bridgelessEnabled) {
       ReactNativeFeatureFlags.override(

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java

@@ -978,8 +978,7 @@ public void receiveEvent(
 
     EventEmitterWrapper eventEmitter = mMountingManager.getEventEmitter(surfaceId, reactTag);
     if (eventEmitter == null) {
-      if (ReactFeatureFlags.enableFabricPendingEventQueue
-          && mMountingManager.getViewExists(reactTag)) {
+      if (mMountingManager.getViewExists(reactTag)) {
         // The view is preallocated and created. However, it hasn't been mounted yet. We will have
         // access to the event emitter later when the view is mounted. For now just save the event
         // in the view state and trigger it later.