(Commit message written by Oliver)

The tests relied on a lot of specifics of the old codebase. We decided
that it makes more sense to just remove all tests for now to get this
large patchset of refactorings and improvements done, and then gradually
add new tests / possibly adjust some of the old ones and bring them back
in future patches.

Future tests will not be in the "test" directory, Caleb's reasoning:
> Easier to find relevant tests for a module, and avoid the big flat
> list of test files like we had before. Honestly was just a vibes
> thing after reading the docs.

Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
Tweaked-By: Oliver Smith <ollieparanoid@postmarketos.org>