Cleanup: remove unicode prefix, remove explicit inheritance from object (#11015)

* Address UP025: remove unicode literals from strings.

* Address UP004: class inherits from 'object'.

plugins/module_utils/lxd.py

@@ -38,7 +38,7 @@ class LXDClientException(Exception):
         self.kwargs = kwargs
 
 
-class LXDClient(object):
+class LXDClient:
     def __init__(self, url, key_file=None, cert_file=None, debug=False, server_cert_file=None, server_check_hostname=True):
         """LXD Client.