Also remove all unused flags.
Signed-off-by: NAndrew Jones <drjones@redhat.com>
Message-id: 20170102200153.28864-4-drjones@redhat.com
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>