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: Iaa74763ad7fa80ad5b47cc820a04b8e3a7ad25d9

.zuul.yaml

@@ -1,7 +1,6 @@
 - project:
     templates:
       - openstack-python3-yoga-jobs
-      - openstack-lower-constraints-jobs
       - publish-openstack-docs-pti
     check:
       jobs:

lower-constraints.txt

@@ -1,116 +0,0 @@
-alabaster==0.7.10
-appdirs==1.4.3
-APScheduler==3.0.5
-asn1crypto==0.24.0
-Babel==2.5.3
-bcrypt==3.1.4
-botocore==1.5.1
-certifi==2018.1.18
-cffi==1.11.5
-chardet==3.0.4
-cliff==2.11.0
-cmd2==0.8.1
-coverage==4.0
-cryptography==2.1
-ddt==1.0.1
-debtcollector==1.19.0
-decorator==4.2.1
-deprecation==2.0
-doc8==0.6.0
-docutils==0.14
-dogpile.cache==0.6.5
-dulwich==0.19.0
-enum-compat==0.0.2
-eventlet==0.20.0
-extras==1.0.0
-fasteners==0.14.1
-fixtures==3.0.0
-future==0.16.0
-greenlet==0.4.13
-idna==2.6
-imagesize==1.0.0
-iso8601==0.1.12
-Jinja2==2.10
-jmespath==0.9.3
-jsonpatch==1.21
-jsonpointer==2.0
-jsonschema==2.6.0
-keystoneauth1==3.4.0
-linecache2==1.0.0
-logilab-common==1.4.1
-MarkupSafe==1.0
-mock==2.0.0
-monotonic==1.4
-msgpack==0.5.6
-munch==2.2.0
-netaddr==0.7.19
-netifaces==0.10.6
-openstackdocstheme==1.31.2
-openstacksdk==0.12.0
-os-brick==2.2.0
-os-client-config==1.29.0
-os-service-types==1.2.0
-os-win==4.0.0
-osc-lib==1.10.0
-oslo.concurrency==3.26.0
-oslo.config==5.2.0
-oslo.context==2.20.0
-oslo.i18n==3.20.0
-oslo.log==3.36.0
-oslo.privsep==1.28.0
-oslo.serialization==2.25.0
-oslo.service==1.24.0
-oslo.utils==3.33.0
-packaging==17.1
-paramiko==2.0.0
-Paste==2.0.3
-PasteDeploy==1.5.2
-pbr==2.0.0
-prettytable==0.7.2
-psutil==3.2.2
-pyasn1==0.4.2
-pycparser==2.18
-Pygments==2.2.0
-pyinotify==0.9.6
-pymongo==3.0.2
-PyMySQL==0.7.6
-PyNaCl==1.2.1
-pyOpenSSL==17.5.0
-pyparsing==2.2.0
-pyperclip==1.6.0
-python-dateutil==2.7.0
-python-keystoneclient==3.8.0
-python-monascaclient==1.1.0
-python-neutronclient==6.7.0
-python-novaclient==9.1.0
-python-openstackclient==3.12.0
-python-subunit==1.2.0
-python-swiftclient==3.2.0
-pytz==2018.3
-PyYAML==3.12.0
-reno==2.5.0
-repoze.lru==0.7
-requests==2.18.4
-requestsexceptions==1.4.0
-retrying==1.3.3
-rfc3986==1.1.0
-Routes==2.4.1
-setuptools==21.0.0
-simplejson==3.13.2
-snowballstemmer==1.2.1
-Sphinx==1.6.2
-sphinxcontrib-apidoc==0.2.0
-sphinxcontrib-websupport==1.0.1
-stestr==2.0.0
-stevedore==1.28.0
-tempest==17.1.0
-stestr==2.0.0
-testtools==2.2.0
-traceback2==1.4.0
-tzlocal==1.5.1
-unittest2==1.1.0
-urllib3==1.22
-voluptuous==0.11.1
-warlock==1.3.0
-WebOb==1.8.0
-wrapt==1.10.11

tox.ini

@@ -63,10 +63,4 @@ commands =
 ignore = H
 select = H102, H103, H201, H501, H903, H201, H306, H301, H233
 show-source = True
-exclude = .venv,.tox,dist,doc,test,*egg,tests
-
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
+exclude = .venv,.tox,dist,doc,test,*egg,tests