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/ldap.py

@@ -51,7 +51,7 @@ def ldap_required_together():
     return [['client_cert', 'client_key']]
 
 
-class LdapGeneric(object):
+class LdapGeneric:
     def __init__(self, module):
         # Shortcuts
         self.module = module