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/net_config.py

@@ -26,10 +26,12 @@ import glob
 import urlparse
 
 from ansible.plugins.action import ActionBase
-from ansible.utils.unicode import to_unicode
+from ansible.module_utils._text import to_text
+
 
 PRIVATE_KEYS_RE = re.compile('__.+__')
 
+
 class ActionModule(ActionBase):
 
     TRANSFERS_FILES = False
@@ -56,7 +58,6 @@ class ActionModule(ActionBase):
                                           result['__backup__'])
             result['backup_path'] = filepath
 
-
         # strip out any keys that have two leading and two trailing
         # underscore characters
         for key in result.keys():
@@ -98,7 +99,7 @@ class ActionModule(ActionBase):
 
         try:
             with open(source, 'r') as f:
-                template_data = to_unicode(f.read())
+                template_data = to_text(f.read())
         except IOError:
             return dict(failed=True, msg='unable to load src file')
 
@@ -114,5 +115,3 @@ class ActionModule(ActionBase):
         searchpath.append(os.path.dirname(source))
         self._templar.environment.loader.searchpath = searchpath
         self._task.args['src'] = self._templar.template(template_data)
-
-