test: fix lxd auto init test suite
test: fix lxd auto init test suite

- Recent changes to the test suite causes a kall to "kill_lxd" to deconfigure
  loop devices. So we can't call deconfigure_{lvm}-loop_device afterwards or
  else we'll fail.
- Also, we can't test some auto init cases because they use the hard-coded
  "default" zfs pool name as pool name. This will mess with parallel runs of the
  test-suite on the same runner. It's not a big problem though, since the
  interesting cases should still be testable.

Signed-off-by: Christian Brauner <48455ab3070520a2d174545c7239d6d0fabd9a83@ubuntu.com>

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