Fix a few lint warnings

greg/api/filters.py

@@ -33,7 +33,7 @@ class PersonFilter(FilterSet):
     def verified_filter(self, queryset, name, value):
         if value is True:
             return queryset.with_verified_identities()
-        elif value is False:
+        if value is False:
             return queryset.without_verified_identities()
         return queryset
 

greg/managers.py

-from django.db.models import Count, Manager, Q, QuerySet
-from django.utils import timezone
+from django.db.models import Count, Manager, QuerySet
 
 
 class PersonQuerySet(QuerySet):