Drop py27 tests

Task: 39089
Story: 2007437

Change-Id: I3d311f457307a75a3e9167768ae5e0c1d47d9566

.zuul.yaml

@@ -1,9 +1,9 @@
 - project:
     templates:
       - check-requirements
+      - openstack-cover-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python-jobs
-      - openstack-python3-train-jobs
+      - openstack-python3-ussuri-jobs
       - publish-openstack-docs-pti
     check:
       jobs:

setup.cfg

@@ -14,7 +14,6 @@ classifier =
     Operating System :: POSIX :: Linux
     Programming Language :: Python
     Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.0
-envlist = py27,py37,pypy,pep8
+envlist = py37,pypy,pep8
 skipsdist = True
 
 [testenv]
@@ -37,10 +37,6 @@ deps =
 basepython = python3
 commands = oslo_debug_helper -t magnumclient/tests {posargs}
 
-[testenv:debug-py27]
-basepython = python2.7
-commands = oslo_debug_helper -t magnumclient/tests {posargs}
-
 [testenv:pep8]
 basepython = python3
 commands =