Flutter 3.0 NOT removed buttons!

main.dart

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);
const Color lightCyan = Color(0xFF7DBBB2);

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        scaffoldBackgroundColor: darkBlue,
        toggleableActiveColor: lightCyan,
      ),
      debugShowCheckedModeBanner: false,
      home: const Scaffold(
        body: Center(
          child: MyWidget(),
        ),
      ),
    );
  }
}

class MyWidget extends StatefulWidget {
  const MyWidget({super.key});

  @override
  State<MyWidget> createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  bool switchOn = true;
  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Text(
          'Hello, World!',
          style: Theme.of(context).textTheme.headline4,
        ),
        SwitchListTile(
          title: const Text('ThemeData.toggleableActiveColor '
              'is not yet deprecated'),
          subtitle:
              const Text('It was mentioned as deprecated in early release '
                  'info, but no longer mentioned.'),
          value: switchOn,
          onChanged: (bool value) {
            setState(() {
              switchOn = value;
            });
          },
        ),
        // These buttons still exist too!
        FlatButton(onPressed: () {}, child: const Text("I'm a FlatButton")),
        const SizedBox(height: 8),
        RaisedButton(onPressed: () {}, child: const Text("I'm a RaisedButton")),
        //OutlineButton(onPressed: () {}, child: const Text('OutlineButton')),
        const SizedBox(height: 8),
        const Text('Based on Flutter 3 announcement the above buttons '
            'should be removed in v3!?'),
        const Text('The OutlineButton is removed though!'),
      ],
    );
  }
}

With the release of Flutter 3.0 the old buttons are supposed to be removed based on this:
https://docs.flutter.dev/release/breaking-changes/2-10-deprecations

Mentioned where it is mentioned that deprecated FlatButton, RaisedButton and OutlineButton are removed.
This PR is referenced flutter/flutter#98546, however it only removes the ``OutlineButton` the other buttons remain in Flutter 3.0.0.