Currently flutter build aot is designed with a large number of configurations to support integration into the iOS and Android build scripts. Now that this dependency is being removed, it will no longer be used by anything within the flutter tree.

In the future, I would like it to be available for arbitrary 3rd party embedders to use, though that will require some significant refactoring.

In the meantime, I propose we delete the existing functionality and leave a placeholder.

cc @zanderso