Stop testing lower-constraints

[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-October/018445.html

Conflicts:
  .zuul.yaml
  bindep.txt
  lower-constraints.txt
  tox.ini

NOTE(stephenfin): Conflicts are due to the changed job template (train
vs ussuri), slightly different lower constraints between branches and
presence of a 'basepython' line in the tox environment. The bindep
change added to the stable/ussuri change is no longer relevant here.

Change-Id: I45e9a81d451c64cdd51f9b606d94161742bacdb7
(cherry picked from commit c677192d51)
(cherry picked from commit cde8db3d61)
(cherry picked from commit 40f56c653c)
(cherry picked from commit 84af7608ef)
(cherry picked from commit db92b96407)

.zuul.yaml

@@ -191,7 +191,6 @@
       - openstackclient-plugin-jobs
       - osc-tox-unit-tips
       - openstack-cover-jobs
-      - openstack-lower-constraints-jobs
       - openstack-python-jobs
       - openstack-python3-train-jobs
       - publish-openstack-docs-pti

lower-constraints.txt

@@ -1,143 +0,0 @@
-amqp==2.1.1
-aodhclient==0.9.0
-appdirs==1.3.0
-asn1crypto==0.23.0
-Babel==2.3.4
-bandit==1.1.0
-cachetools==2.0.0
-cffi==1.7.0
-cliff==2.8.0
-cmd2==0.8.0
-contextlib2==0.4.0
-coverage==4.0
-cryptography==2.1
-debtcollector==1.2.0
-decorator==3.4.0
-deprecation==1.0
-docker-pycreds==0.2.1
-docker==2.4.2
-dogpile.cache==0.6.2
-eventlet==0.18.2
-extras==1.0.0
-fasteners==0.7.0
-fixtures==3.0.0
-flake8-import-order==0.13
-flake8==2.6.2
-future==0.16.0
-futurist==1.2.0
-gitdb==0.6.4
-GitPython==1.0.1
-gnocchiclient==3.3.1
-greenlet==0.4.10
-hacking==1.1.0
-httplib2==0.9.1
-idna==2.6
-iso8601==0.1.11
-Jinja2==2.10
-jmespath==0.9.0
-jsonpatch==1.16
-jsonpointer==1.13
-jsonschema==2.6.0
-keystoneauth1==3.8.0
-kombu==4.0.0
-linecache2==1.0.0
-MarkupSafe==1.0
-mccabe==0.2.1
-mock==2.0.0
-monotonic==0.6
-mox3==0.20.0
-msgpack-python==0.4.0
-munch==2.1.0
-netaddr==0.7.18
-netifaces==0.10.4
-openstacksdk==0.17.0
-os-client-config==1.28.0
-os-service-types==1.2.0
-os-testr==1.0.0
-osc-lib==1.14.0
-oslo.concurrency==3.26.0
-oslo.config==5.2.0
-oslo.context==2.19.2
-oslo.i18n==3.15.3
-oslo.log==3.36.0
-oslo.messaging==5.29.0
-oslo.middleware==3.31.0
-oslo.serialization==2.18.0
-oslo.service==1.24.0
-oslo.utils==3.33.0
-oslotest==3.2.0
-osprofiler==1.4.0
-paramiko==2.0.0
-Paste==2.0.2
-PasteDeploy==1.5.0
-pbr==2.0.0
-pika-pool==0.1.3
-pika==0.10.0
-ply==3.10
-positional==1.2.1
-prettytable==0.7.2
-pyasn1==0.1.8
-pycodestyle==2.0.0
-pycparser==2.18
-pyflakes==0.8.1
-pyinotify==0.9.6
-pyOpenSSL==17.1.0
-pyparsing==2.1.0
-pyperclip==1.5.27
-python-barbicanclient==4.5.2
-python-cinderclient==3.3.0
-python-congressclient==1.9.0
-python-dateutil==2.5.3
-python-designateclient==2.7.0
-python-glanceclient==2.8.0
-python-heatclient==1.10.0
-python-ironic-inspector-client==1.5.0
-python-ironicclient==2.3.0
-python-karborclient==0.6.0
-python-keystoneclient==3.17.0
-python-mimeparse==1.6.0
-python-mistralclient==3.1.0
-python-muranoclient==0.8.2
-python-neutronclient==6.7.0
-python-novaclient==15.0.0
-python-octaviaclient==1.3.0
-python-rsdclient==0.1.0
-python-saharaclient==1.4.0
-python-searchlightclient==1.0.0
-python-senlinclient==1.1.0
-python-subunit==1.0.0
-python-swiftclient==3.2.0
-python-troveclient==2.2.0
-python-zaqarclient==1.0.0
-python-zunclient==3.4.0
-pytz==2013.6
-PyYAML==3.12
-repoze.lru==0.7
-requests-mock==1.2.0
-requests==2.14.2
-requestsexceptions==1.2.0
-rfc3986==0.3.1
-Routes==2.3.1
-rsd-lib==0.1.0
-simplejson==3.5.1
-six==1.10.0
-smmap==0.9.0
-statsd==3.2.1
-stestr==1.0.0
-stevedore==1.20.0
-sushy==0.1.0
-tempest==17.1.0
-tenacity==3.2.1
-testrepository==0.0.18
-testtools==2.2.0
-traceback2==1.4.0
-ujson==1.35
-unittest2==1.1.0
-urllib3==1.21.1
-validictory==1.1.1
-vine==1.1.4
-warlock==1.2.0
-WebOb==1.7.1
-websocket-client==0.44.0
-wrapt==1.7.0
-yaql==1.1.3

requirements.txt

@@ -1,3 +1,7 @@
+# Requirements lower bounds listed here are our best effort to keep them up to
+# date but we do not test them so no guarantee of having them all correct. If
+# you find any incorrect lower bounds, let us know or propose a fix.
+
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.

tox.ini

@@ -136,10 +136,3 @@ exclude = .git,.tox,dist,doc,*lib/python*,*egg,build,tools
 ignore = W504
 import-order-style = pep8
 application_import_names = openstackclient
-
-[testenv:lower-constraints]
-basepython = python2.7
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt