Remove ansible-role-functional-jobs-centos7 from ansible-role-zuul
Zuulv3 requires python3 now, as a result default repos shipped by
centos-7 do not support it.  Remove testing on centos-7 until we can
look into software collections.
@@ -5504,7 +5504,6 @@ projects:
template:
- name: merge-check
- name: ansible-role-jobs
- - name: ansible-role-functional-jobs-centos7
- name: ansible-role-functional-jobs-fedora-25
- name: ansible-role-functional-jobs-xenial
- name: docs-on-rtfd
