Remove the option to build without rust code. We are not testing this configuration and expect to land non-optional rust code in the near future, so it doesn't make sense to maintain this option. MozReview-Commit-ID: CwTlMXGvr5n
Remove the option to build without rust code. We are not testing this configuration and expect to land non-optional rust code in the near future, so it doesn't make sense to maintain this option. MozReview-Commit-ID: CwTlMXGvr5n