Unit test cleanup. (#60315)

* Clean up option parsing unit tests.
* Remove unused unit test marker and import.

test/units/cli/arguments/test_optparse_helpers.py

@@ -2,18 +2,13 @@
 # Copyright: (c) 2018, Ansible Project
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
-# Make coding more python3-ish
-from __future__ import (absolute_import, division)
+from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-import pytest
-
 from ansible.cli.arguments import option_helpers as opt_help
 
 
-class TestOptparseHelpersVersion:
-
-    def test_version(self):
-        ver = opt_help.version('ansible-cli-test')
-        assert 'ansible-cli-test' in ver
-        assert 'python version' in ver
+def test_version():
+    ver = opt_help.version('ansible-cli-test')
+    assert 'ansible-cli-test' in ver
+    assert 'python version' in ver