Drop the audit.log reset steps
Most tests have been converted to use the system journal to check for audit events, so there's no need to reset the audit.log anymore.
Resetting it is even harmful today since auditd is no longer shipped by
default on images, thus the step fails as the file and the directory that
should contain it do not exist.
Signed-off-by: Emanuele Aina emanuele.aina@collabora.com