python-pyasn1 is truly optional since version 2.5.0 anda31818c285Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> (cherry picked from commit78da0a0ea3) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>