Move uses of to_bytes, to_text, to_native to use the module_utils version (#17423)

We couldn't copy to_unicode, to_bytes, to_str into module_utils because
of licensing.  So once created it we had two sets of functions that did
the same things but had different implementations.  To remedy that, this
change removes the ansible.utils.unicode versions of those functions.

test/units/plugins/action/test_action.py

@@ -21,8 +21,6 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-import ast
-import json
 import pipes
 import os
 
@@ -33,7 +31,6 @@ except ImportError:
 
 from nose.tools import eq_, raises
 
-from ansible.release import __version__ as ansible_version
 from ansible import constants as C
 from ansible.compat.six import text_type
 from ansible.compat.tests import unittest
@@ -41,12 +38,12 @@ from ansible.compat.tests.mock import patch, MagicMock, mock_open
 
 from ansible.errors import AnsibleError
 from ansible.playbook.play_context import PlayContext
-from ansible.plugins import PluginLoader
 from ansible.plugins.action import ActionBase
 from ansible.template import Templar
-from ansible.utils.unicode import to_bytes
 
 from units.mock.loader import DictDataLoader
+from ansible.module_utils._text import to_bytes
+
 
 python_module_replacers = b"""
 #!/usr/bin/python
@@ -67,11 +64,13 @@ WINDOWS_ARGS = "<<INCLUDE_ANSIBLE_MODULE_JSON_ARGS>>"
 
 class DerivedActionBase(ActionBase):
     TRANSFERS_FILES = False
+
     def run(self, tmp=None, task_vars=None):
         # We're not testing the plugin run() method, just the helper
         # methods ActionBase defines
         return super(DerivedActionBase, self).run(tmp=tmp, task_vars=task_vars)
 
+
 class TestActionBase(unittest.TestCase):
 
     def test_action_base_run(self):
@@ -144,7 +143,7 @@ class TestActionBase(unittest.TestCase):
                 self.assertRaises(AnsibleError, action_base._configure_module, 'badmodule', mock_task.args)
 
         # test powershell module formatting
-        with patch.object(builtins, 'open', mock_open(read_data=to_bytes(powershell_module_replacers.strip(), encoding='utf-8'))) as m:
+        with patch.object(builtins, 'open', mock_open(read_data=to_bytes(powershell_module_replacers.strip(), encoding='utf-8'))):
             mock_task.action = 'win_copy'
             mock_task.args = dict(b=2)
             mock_connection.module_implementation_preferences = ('.ps1',)
@@ -497,7 +496,10 @@ class TestActionBase(unittest.TestCase):
         action_base._connection.has_pipelining = True
         action_base._low_level_execute_command.return_value = dict(stdout='{"rc": 0, "stdout": "ok"}')
         self.assertEqual(action_base._execute_module(module_name=None, module_args=None), dict(_ansible_parsed=True, rc=0, stdout="ok", stdout_lines=['ok']))
-        self.assertEqual(action_base._execute_module(module_name='foo', module_args=dict(z=9, y=8, x=7), task_vars=dict(a=1)), dict(_ansible_parsed=True, rc=0, stdout="ok", stdout_lines=['ok']))
+        self.assertEqual(action_base._execute_module(module_name='foo',
+            module_args=dict(z=9, y=8, x=7), task_vars=dict(a=1)),
+            dict(_ansible_parsed=True, rc=0, stdout="ok",
+                stdout_lines=['ok']))
 
         # test with needing/removing a remote tmp path
         action_base._configure_module.return_value = ('old', '#!/usr/bin/python', 'this is the module data', 'path')
@@ -555,6 +557,7 @@ class TestActionBase(unittest.TestCase):
         finally:
             C.BECOME_ALLOW_SAME_USER = become_allow_same_user
 
+
 # Note: Using nose's generator test cases here so we can't inherit from
 # unittest.TestCase
 class TestFilterNonJsonLines(object):
@@ -592,4 +595,3 @@ class TestFilterNonJsonLines(object):
     def test_unparsable_filter_non_json_lines(self):
         for stdout_line in self.unparsable_cases:
             yield self.check_unparsable_filter_non_json_lines, stdout_line
-