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.

lib/ansible/plugins/action/win_reboot.py

@@ -19,26 +19,24 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.plugins.action import ActionBase
-from ansible.utils.boolean import boolean
-from ansible.utils.unicode import to_unicode
-from ansible.errors import AnsibleUndefinedVariable
-
 import socket
 import time
-import traceback
 
 from datetime import datetime, timedelta
 
+from ansible.plugins.action import ActionBase
+
 try:
     from __main__ import display
 except ImportError:
     from ansible.utils.display import Display
     display = Display()
 
+
 class TimedOutException(Exception):
     pass
 
+
 class ActionModule(ActionBase):
     TRANSFERS_FILES = False
 
@@ -50,7 +48,7 @@ class ActionModule(ActionBase):
 
     def do_until_success_or_timeout(self, what, timeout_sec, what_desc, fail_sleep_sec=1):
         max_end_time = datetime.utcnow() + timedelta(seconds=timeout_sec)
-        
+
         while datetime.utcnow() < max_end_time:
             try:
                 what()
@@ -82,7 +80,7 @@ class ActionModule(ActionBase):
         winrm_port = self._connection._winrm_port
 
         result = super(ActionModule, self).run(tmp, task_vars)
-        
+
         # initiate reboot
         (rc, stdout, stderr) = self._connection.exec_command("shutdown /r /t %d" % pre_reboot_delay_sec)
 
@@ -92,7 +90,7 @@ class ActionModule(ActionBase):
             result['msg'] = "Shutdown command failed, error text was %s" % stderr
             return result
 
-        def raise_if_port_open(): 
+        def raise_if_port_open():
             try:
                 sock = socket.create_connection((winrm_host, winrm_port), connect_timeout_sec)
                 sock.close()
@@ -137,4 +135,3 @@ class ActionModule(ActionBase):
             result['msg'] = toex.message
 
         return result
-