tests/avocado: Remove unused QemuUserTest class

The single test that was using the QemuUserTest class
has been converted to the functional test framework.
This class is now unused, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240822104238.75045-4-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240830133841.142644-40-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed