python2 cleanups

src/wagtail_personalisation/adapters.py

@@ -9,7 +9,7 @@ from wagtail_personalisation.rules import AbstractBaseRule
 from wagtail_personalisation.utils import create_segment_dictionary
 
 
-class BaseSegmentsAdapter(object):
+class BaseSegmentsAdapter:
     """Base segments adapter."""
 
     def __init__(self, request):

src/wagtail_personalisation/models.py

@@ -302,7 +302,7 @@ class PersonalisablePageMetadata(ClusterableModel):
         return Segment.objects.none()
 
 
-class PersonalisablePageMixin(object):
+class PersonalisablePageMixin:
     """The personalisable page model. Allows creation of variants with linked
     segments.