debian8 partial base is also not consumed by any image, so remove it.
For QEMU's development cycle, we only support debian9 (stretch) and
debian10 (buster).
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190923181140.7235-3-jsnow@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>