Summary: Unit test would fail on trying to emit server commands when creating a ArchivedDevice. But archived devices can silently ignore log start commands, which fixes the failing test as well. Example failing run: https://github.com/facebook/flipper/runs/3685776120 I'm not sure why the test wasn't _always_ failing Reviewed By: lblasa Differential Revision: D31142584 fbshipit-source-id: 57106ecdace9f72444eaf68ee9fa024c84556a1c