Dropping lower constraints testing (stable Wallaby)

As decided in Neutron meeting, stable branches will drop this
CI job [1].

Also, a [B105:hardcoded_password_string] bandit issue is fixed

[1] http://eavesdrop.openstack.org/meetings/networking/2021/networking.2021-01-12-14.00.log.html

Change-Id: Ic1300f7aa03efe8fc82d1210dea44ff841465a79

.zuul.yaml

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

lower-constraints.txt

@@ -1,111 +0,0 @@
-alabaster==0.7.10
-amqp==2.1.1
-appdirs==1.3.0
-asn1crypto==0.23.0
-Babel==2.3.4
-cachetools==2.0.0
-cffi==1.14.0
-cliff==3.4.0
-cmd2==0.8.0
-contextlib2==0.4.0
-coverage==4.0
-cryptography==2.7
-debtcollector==1.2.0
-decorator==3.4.0
-deprecation==1.0
-docutils==0.11
-dogpile.cache==0.6.5
-dulwich==0.15.0
-eventlet==0.18.2
-extras==1.0.0
-fasteners==0.7.0
-fixtures==3.0.0
-flake8-import-order==0.12
-flake8==3.6.0
-future==0.16.0
-futurist==1.2.0
-greenlet==0.4.10
-hacking==3.0.1
-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==3.8.0
-kombu==4.0.0
-linecache2==1.0.0
-MarkupSafe==1.0
-mccabe==0.6.0
-monotonic==0.6
-msgpack-python==0.4.0
-munch==2.1.0
-netaddr==0.7.18
-netifaces==0.10.4
-openstacksdk==0.15.0
-os-client-config==1.28.0
-os-service-types==1.2.0
-osc-lib==1.12.0
-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==2.3.0
-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
-positional==1.2.1
-prettytable==0.7.2
-pyasn1==0.1.8
-pycodestyle==2.4.0
-pycparser==2.18
-pyflakes==2.0.0
-Pygments==2.2.0
-pyinotify==0.9.6
-pyOpenSSL==17.1.0
-pyparsing==2.1.0
-pyperclip==1.5.27
-python-cinderclient==3.3.0
-python-dateutil==2.5.3
-python-glanceclient==2.8.0
-python-keystoneclient==3.8.0
-python-mimeparse==1.6.0
-python-novaclient==9.1.0
-python-openstackclient==3.12.0
-python-subunit==1.0.0
-pytz==2013.6
-PyYAML==5.3.1
-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
-simplejson==3.5.1
-snowballstemmer==1.2.1
-statsd==3.2.1
-stestr==2.0.0
-stevedore==2.0.1
-tempest==17.1.0
-tenacity==3.2.1
-testscenarios==0.4
-testtools==2.2.0
-traceback2==1.4.0
-unittest2==1.1.0
-urllib3==1.21.1
-vine==1.1.4
-warlock==1.2.0
-WebOb==1.7.1
-wrapt==1.7.0

neutronclient/client.py

@@ -189,7 +189,7 @@ class HTTPClient(object):
         try:
             kwargs['headers'] = kwargs.get('headers') or {}
             if self.auth_token is None:
-                self.auth_token = ""
+                self.auth_token = ""    # nosec
             kwargs['headers']['X-Auth-Token'] = self.auth_token
             resp, body = self._cs_request(self.endpoint_url + url, method,
                                           **kwargs)

tox.ini

@@ -83,9 +83,3 @@ enable-extensions=H904
 # B303: blacklist calls: md5, sha1
 deps = -r{toxinidir}/test-requirements.txt
 commands = bandit -r neutronclient -x tests -n5 -s B303
-
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt