1 files changed, 2 insertions, 15 deletions
diff --git a/src/zope/security/testing.py b/src/zope/security/testing.py
index be551ce..f725912 100644
--- a/src/zope/security/testing.py
+++ b/src/zope/security/testing.py
@@ -17,30 +17,17 @@ Testing support code.
 This module provides some helper/stub objects for setting up interactions.
 """
 import contextlib
-import re
-
-from zope.testing import renormalizing
 
 import zope.security.management
 from zope import component
 from zope import interface
 from zope.security import interfaces
-from zope.security._compat import PYTHON2 as PY2
 from zope.security.interfaces import PUBLIC_PERMISSION_NAME
 from zope.security.permission import Permission
 
 
-_str_prefix = 'b' if PY2 else 'u'
-
-rules = [
-    (re.compile(_str_prefix + "('.*?')"), r"\1"),
-    (re.compile(_str_prefix + '(".*?")'), r"\1"),
-]
-output_checker = renormalizing.RENormalizing(rules)
-
-
 @interface.implementer(interfaces.IPrincipal)
-class Principal(object):
+class Principal:
     """
     A trivial implementation of :class:`zope.security.interfaces.IPrincipal`.
     """
@@ -55,7 +42,7 @@ class Principal(object):
 
 
 @interface.implementer(interfaces.IParticipation)
-class Participation(object):
+class Participation:
     """
     A trivial implementation of
     :class:`zope.security.interfaces.IParticipation`.