See https://docs.flutter.dev/reference/supported-platforms

I don't expect this to break anything, but if it does we can revert and figure out what else needs to happen first.

Without this change, engine changes upstream will get flagged in default flutter created apps.

* dart fix --apply

* manual fixes

* fix after merge conflicts

* review

This reverts commit 9038fac9.

This reverts commit 058dfd49.