The EC2-API project was marked inactive, because of lack of appropriate
maintenance effort[1] and the project was excluded from Caracal
deliverables. This removes testing with the puppet-ec2api module
because we are also retiring this module for the unmaintained project.
[1] https://review.opendev.org/c/openstack/governance/+/902625
Change-Id: Ic8c89e096e9b3acd5a71ec0be1bff20936977bcf
cddbe5e38b