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/patch.py

@@ -20,10 +20,10 @@ __metaclass__ = type
 
 import os
 
+from ansible.errors import AnsibleError
+from ansible.module_utils._text import to_native
 from ansible.plugins.action import ActionBase
 from ansible.utils.boolean import boolean
-from ansible.errors import AnsibleError
-from ansible.utils.unicode import to_str
 
 
 class ActionModule(ActionBase):
@@ -52,7 +52,7 @@ class ActionModule(ActionBase):
             src = self._find_needle('files', src)
         except AnsibleError as e:
             result['failed'] = True
-            result['msg'] = to_str(e)
+            result['msg'] = to_native(e)
             return result
 
         # create the remote tmp dir if needed, and put the source file there