Ensure legacy architecture can't be initialized in Android (#53806)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/53806

The Legacy architecture of React Native is not supported anymore, let's ensure nobody can initialize it anymore

changelog: [internal] internal

Reviewed By: cortinico

Differential Revision: D82465004

fbshipit-source-id: 099764fb59d906b11cf6ad0cc6208f56df029d19