tests/avocado/boot_linux_console: Remove the s390x subtest

We've got a much more sophisticated, Fedora-based test for s390x
("test_s390x_fedora" in another file) already, so the test in
boot_linux_console.py seems to be rather a waste of precious test
cycles. Thus move the command line check and delete the s390x
test in boot_linux_console.py.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240830133841.142644-7-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed