CrostiniManager now takes care of uninstalling cros-termina

When a user runs the Crostini uninstall flow, CrostiniManager would still
think the cros-termina component was registered. This is now fixed.

Bug: None
Change-Id: I83f251ea9d02f6979190daba33ce2308ea92af23
Reviewed-on: https://chromium-review.googlesource.com/c/1272956
Commit-Queue: Nicholas Verne <[email protected]>
Reviewed-by: Timothy Loh <[email protected]>
Cr-Commit-Position: refs/heads/master@{#598998}
3 files changed