diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstancePackage.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstancePackage.java
deleted file mode 100644
index 3d8634135c356d..00000000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstancePackage.java
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react;
-
-import com.facebook.react.bridge.NativeModule;
-import com.facebook.react.bridge.ReactApplicationContext;
-import java.util.List;
-
-/**
- * A simple wrapper for ReactPackage to make it aware of its {@link ReactInstanceManager} when
- * creating native modules. This is useful when the package needs to ask the instance manager for
- * more information, like {@link DevSupportManager}.
- *
- * <p>TODO(t11394819): Consolidate this with LazyReactPackage Use {@link ReactPackage} or {@link
- * LazyReactPackage} and inject reactInstanceManager as a part of when plugins are initialized.
- */
-@Deprecated
-public abstract class ReactInstancePackage implements ReactPackage {
-
-  public abstract List<NativeModule> createNativeModules(
-      ReactApplicationContext reactContext, ReactInstanceManager reactInstanceManager);
-
-  @Override
-  public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
-    throw new RuntimeException("ReactInstancePackage must be passed in the ReactInstanceManager.");
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageHelper.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageHelper.java
index eb38ced52e1ca0..d95d433c55495f 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageHelper.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageHelper.java
@@ -33,14 +33,8 @@ static Iterable<ModuleHolder> getNativeModuleIterator(
         ReactConstants.TAG,
         reactPackage.getClass().getSimpleName()
             + " is not a LazyReactPackage, falling back to old version.");
-    final List<NativeModule> nativeModules;
-    if (reactPackage instanceof ReactInstancePackage) {
-      ReactInstancePackage reactInstancePackage = (ReactInstancePackage) reactPackage;
-      nativeModules =
-          reactInstancePackage.createNativeModules(reactApplicationContext, reactInstanceManager);
-    } else {
-      nativeModules = reactPackage.createNativeModules(reactApplicationContext);
-    }
+    final List<NativeModule> nativeModules =
+        reactPackage.createNativeModules(reactApplicationContext);
     return () ->
         new Iterator<ModuleHolder>() {
           int position = 0;
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageTurboModuleManagerDelegate.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageTurboModuleManagerDelegate.java
index 1424264ae8bdf5..ac9004ee885dc0 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageTurboModuleManagerDelegate.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactPackageTurboModuleManagerDelegate.java
@@ -85,11 +85,6 @@ protected ReactPackageTurboModuleManagerDelegate(
         continue;
       }
 
-      if (shouldSupportLegacyPackages() && reactPackage instanceof ReactInstancePackage) {
-        // TODO(T145105887): Output error that ReactPackage was used
-        continue;
-      }
-
       if (shouldSupportLegacyPackages()) {
         // TODO(T145105887): Output warnings that ReactPackage was used
         final List<NativeModule> nativeModules =