Drop lower-constraints.txt and its testing

As discussed in TC PTG[1] and TC resolution[2], we are
dropping the lower-constraints.txt file and its testing.
We will keep lower bounds in the requirements.txt file but
with a note that these are not tested lower bounds and we
try our best to keep them updated.

[1] https://etherpad.opendev.org/p/tc-zed-ptg#L326
[2] https://governance.openstack.org/tc/resolutions/20220414-drop-lower-constraints.html#proposal

Change-Id: I807879cb17f1b5a97d75a5224dd339a0106aaeab

.zuul.yaml

@@ -27,7 +27,6 @@
     templates:
       - check-requirements
       - openstack-cover-jobs-neutron
-      - openstack-lower-constraints-jobs-neutron
       - openstack-python3-zed-jobs-neutron
       - publish-openstack-docs-pti
       - release-notes-jobs-python3

lower-constraints.txt

@@ -1,147 +0,0 @@
-alabaster==0.7.10
-alembic==0.9.6
-amqp==2.1.1
-appdirs==1.3.0
-asn1crypto==0.23.0
-Babel==2.3.4
-beautifulsoup4==4.6.0
-cachetools==2.0.0
-cffi==1.14.0
-cliff==2.8.0
-cmd2==0.8.0
-contextlib2==0.4.0
-coverage==4.0
-cryptography==2.7
-debtcollector==1.2.0
-decorator==4.0.0
-deprecation==1.0
-docutils==0.12
-dogpile.cache==0.8.0
-dulwich==0.15.0
-eventlet==0.18.2
-extras==1.0.0
-fasteners==0.7.0
-fixtures==3.0.0
-flake8==3.8.0
-flake8-import-order==0.12
-future==0.16.0
-futurist==1.2.0
-greenlet==0.4.15
-hacking==3.2.0
-httplib2==0.9.1
-idna==2.6
-imagesize==0.7.1
-iso8601==0.1.11
-Jinja2==2.10
-jmespath==0.9.0
-jsonpatch==1.16
-jsonpointer==1.13
-jsonschema==2.6.0
-keystoneauth1==3.4.0
-keystonemiddleware==4.17.0
-kombu==4.0.0
-linecache2==1.0.0
-logutils==0.3.5
-Mako==1.0.7
-MarkupSafe==1.1.1
-mccabe==0.6.1
-monotonic==0.6
-mox3==0.20.0
-msgpack-python==0.4.0
-munch==2.1.0
-netaddr==0.7.18
-netifaces==0.10.4
-neutron==14.0.0.0b1
-neutron-lib==1.26.0
-openstackdocstheme==2.2.1
-openstacksdk==0.11.2
-os-client-config==1.28.0
-os-ken==0.3.0
-os-service-types==1.2.0
-os-xenapi==0.3.1
-osc-lib==1.8.0
-oslo.cache==1.26.0
-oslo.concurrency==3.26.0
-oslo.config==5.2.0
-oslo.context==2.22.0
-oslo.db==4.44.0
-oslo.i18n==3.15.3
-oslo.log==3.36.0
-oslo.messaging==5.29.0
-oslo.middleware==3.31.0
-oslo.policy==2.0.0
-oslo.privsep==1.23.0
-oslo.reports==1.18.0
-oslo.rootwrap==5.8.0
-oslo.serialization==2.18.0
-oslo.service==1.24.0
-oslo.utils==4.5.0
-oslo.versionedobjects==1.31.2
-oslotest==3.2.0
-osprofiler==1.4.0
-ovs==2.8.0
-ovsdbapp==0.10.0
-paramiko==2.0.0
-Paste==2.0.2
-PasteDeploy==1.5.0
-pbr==2.0.0
-pecan==1.3.2
-pep8==1.5.7
-pika==0.10.0
-pika-pool==0.1.3
-positional==1.2.1
-prettytable==0.7.2
-psutil==3.2.2
-pyasn1==0.1.8
-pycadf==1.1.0
-pycodestyle==2.6.0
-pycparser==2.18
-pyflakes==2.2.0
-Pygments==2.2.0
-pyinotify==0.9.6
-pyparsing==2.1.0
-pyperclip==1.5.27
-pyroute2==0.5.13
-python-dateutil==2.5.3
-python-designateclient==2.7.0
-python-editor==1.0.3
-python-keystoneclient==3.8.0
-python-mimeparse==1.6.0
-python-neutronclient==6.7.0
-python-novaclient==9.1.0
-python-subunit==1.0.0
-pytz==2013.6
-PyYAML==3.13
-reno==3.1.0
-repoze.lru==0.7
-requests==2.14.2
-requestsexceptions==1.2.0
-rfc3986==0.3.1
-Routes==2.3.1
-simplejson==3.5.1
-snowballstemmer==1.2.1
-Sphinx==2.0.0
-sphinxcontrib-svg2pdfconverter==0.1.0 # BSD
-sphinxcontrib-websupport==1.0.1
-SQLAlchemy==1.3.3
-sqlalchemy-migrate==0.11.0
-sqlparse==0.2.2
-statsd==3.2.1
-stestr==1.0.0
-stevedore==1.20.0
-tempest==17.1.0
-Tempita==0.5.2
-tenacity==3.2.1
-testrepository==0.0.18
-testresources==2.0.0
-testscenarios==0.4
-testtools==2.2.0
-tinyrpc==0.6
-traceback2==1.4.0
-unittest2==1.1.0
-urllib3==1.21.1
-vine==1.1.4
-waitress==1.1.0
-WebOb==1.8.2
-WebTest==2.0.27
-wrapt==1.7.0

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

@@ -109,12 +109,6 @@ commands = {toxinidir}/tools/generate_config_file_samples.sh
 [testenv:genpolicy]
 commands = oslopolicy-sample-generator --config-file=etc/oslo-policy-generator/policy.conf
 
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
-
 [testenv:dev]
 # run locally (not in the gate) using editable mode
 # https://pip.pypa.io/en/stable/reference/pip_install/#editable-installs