Remove :packages:react-native-codegen:android from top level settings (#34579)

Summary:
The folder `/packages/react-native-codegen/android` is not existing anymore, I'm removing it.

## Changelog

[Internal] - Remove :packages:react-native-codegen:android from top level settings

Pull Request resolved: https://github.com/facebook/react-native/pull/34579

Test Plan: Will rely on a green CI

Reviewed By: cipolleschi

Differential Revision: D39440292

Pulled By: cortinico

fbshipit-source-id: 492722b1b697e0bf03cf2803b25fb9604cf0778a