cmd/snap-confine: remove unused ubuntu-core-launcher test
This test used to check if ubuntu-core-launcher is installed and
responds to --help. We have long stopped caring about it. Let's not
carry this test anymore.
Signed-off-by: Zygmunt Krynicki <email address hidden>
cmd/snap-confine: remove unused mount-ns-layout test
Before snap-confine was merged with snapd it used to have its own spread
tests. Those tests are unused for many years now. While some may be
salvaged, the mount-ns-layout test is an ancestor of the much-improved
tests/main/mount-ns test. The ancestor can now rest in peace.
Signed-off-by: Zygmunt Krynicki <email address hidden>