Dropping the py35 testing

All the integration testing has been moved to
Bionic now[1] and py3.5 is not tested runtime for
Train or stable/stein[2].

As per below ML thread, we are good to drop the py35
testing now:
http://lists.openstack.org/pipermail/openstack-discuss/2019-April/005097.html

This commit makes requirements-tox-py36-check-uc job
voting and run on gate pipeline also.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-April/004647.html
[2]
https://governance.openstack.org/tc/reference/runtimes/stein.html
https://governance.openstack.org/tc/reference/runtimes/train.html

Change-Id: I62b5d59ef0694ff5dd040c5cfda1b7d6e54e3b11

.zuul.d/jobs.yaml

@@ -23,18 +23,6 @@
     vars:
       tox_envlist: py27-check-uc
 
-- job:
-    name: requirements-tox-py35-check-uc
-    parent: openstack-tox
-    description: |
-      Run test for requirements project.
-
-      Uses tox with the ``py35-check-uc`` environment.
-    files: ^upper-constraints.*txt$
-    nodeset: ubuntu-xenial
-    vars:
-      tox_envlist: py35-check-uc
-
 - job:
     name: requirements-tox-py36-check-uc
     parent: openstack-tox-py36

.zuul.d/project.yaml

@@ -2,7 +2,6 @@
     templates:
       - openstack-pypy-jobs-nonvoting
       - openstack-python-jobs
-      - openstack-python35-jobs
       - openstack-python36-jobs
     check:
       jobs:
@@ -23,9 +22,7 @@
         - requirements-tox-bindep:
             voting: false
         - requirements-tox-py27-check-uc
-        - requirements-tox-py35-check-uc
-        - requirements-tox-py36-check-uc:
-            voting: false
+        - requirements-tox-py36-check-uc
         - requirements-tox-validate-projects:
             voting: false
         - cross-cinder-py27
@@ -76,7 +73,7 @@
         - openstack-tox-validate
         - requirements-tox-babel
         - requirements-tox-py27-check-uc
-        - requirements-tox-py35-check-uc
+        - requirements-tox-py36-check-uc
         - cross-cinder-py27
         - cross-cinder-py36
         - cross-glance-py27

setup.cfg

@@ -18,7 +18,6 @@ classifier =
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
 
 [files]

tox.ini

@@ -20,12 +20,6 @@ install_command = pip install -U {opts} -c {toxinidir}/upper-constraints.txt {pa
 deps = -r{toxinidir}/upper-constraints.txt
 commands = check-conflicts {toxinidir}/upper-constraints.txt {toxinidir}/upper-constraints-xfails.txt
 
-[testenv:py35-check-uc]
-basepython = python3.5
-install_command = pip install -U {opts} -c {toxinidir}/upper-constraints.txt {packages}
-deps = -r{toxinidir}/upper-constraints.txt
-commands = check-conflicts {toxinidir}/upper-constraints.txt {toxinidir}/upper-constraints-xfails.txt
-
 [testenv:py36-check-uc]
 basepython = python3.6
 install_command = pip install -U {opts} -c {toxinidir}/upper-constraints.txt {packages}