Remove Fenix project template
Remove Fenix project template

zull jobs for Fenix will be moved to the repo [1]

[1] https://review.openstack.org/#/c/600892/

Change-Id: I5137209b65094226f8b323b4b8bc1f133c0665d3

openstack-infra/project-config,openstack-infra/project-config