Remove jobs corresponds to obselete featuresets

As we are removing the jobs which are using the obselete featuresets [1]
so removing those jobs from templates/layouts

[1]: https://review.opendev.org/q/topic:%22cleanup_featuresets%22+(status:open%20OR%20status:merged)

Change-Id: I0cdc9144b37335c1e4d5fc62c2093335b8a5453d

.zuul.yaml

@@ -39,7 +39,6 @@
 - project:
     templates:
       - check-requirements
-      - openstack-lower-constraints-jobs
       - openstack-python-jobs
       - openstack-python35-jobs
       - openstack-python36-jobs
@@ -55,11 +54,3 @@
       jobs:
         - ec2-api-functional-neutron-full
         - ec2-api-rally-fakevirt
-        # TripleO jobs that deploy ec2-api.
-        # Note we don't use a project-template here, so it's easier
-        # to disable voting on one specific job if things go wrong.
-        # tripleo-ci-centos-7-scenario002-multinode-oooq-container will
-        # run in Pike and beyond.
-        # If you need any support to debug these jobs in case of
-        # failures, please reach us on #tripleo IRC channel.
-        - tripleo-ci-centos-7-scenario002-standalone

tox.ini

@@ -78,10 +78,3 @@ max-complexity=25
 
 [hacking]
 local-check-factory = ec2api.hacking.checks.factory
-
-[testenv:lower-constraints]
-basepython = python3
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt