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

[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: I3548290d55fda3a1192fcefb3019c35f60d5b751

.zuul.yaml

@@ -66,7 +66,7 @@
     parent: kuryr-libnetwork-fullstack-base
 
 - job:
-    name: kuryr-libnetwork-fullstack-py35
+    name: kuryr-libnetwork-fullstack-py3
     parent: kuryr-libnetwork-fullstack-base
     vars:
       use_python3: 1
@@ -96,7 +96,6 @@
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
       - openstack-python-jobs
-      - openstack-python35-jobs
       - openstack-python36-jobs
       - openstack-python37-jobs
       - release-notes-jobs-python3
@@ -108,13 +107,13 @@
         - kuryr-libnetwork-kuryr_lib-src-fullstack
         - kuryr-libnetwork-fullstack
         - kuryr-libnetwork-kuryr_lib-src-rally
-        - kuryr-libnetwork-fullstack-py35
+        - kuryr-libnetwork-fullstack-py3
         - kuryr-libnetwork-rally
     gate:
       jobs:
         - kuryr-libnetwork-kuryr_lib-src-fullstack
         - kuryr-libnetwork-fullstack
-        - kuryr-libnetwork-fullstack-py35
+        - kuryr-libnetwork-fullstack-py3
     experimental:
       jobs:
         - kuryr-libnetwork-install-multinode

setup.cfg

@@ -16,7 +16,7 @@ classifier =
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.6
 
 [bdist_wheel]
 universal = 1

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.3.1
-envlist = py35,py27,pep8
+envlist = py36,py27,pep8
 skipsdist = True
 
 [testenv]