diff --git a/apps/acls/serializers/login_acl.py b/apps/acls/serializers/login_acl.py
index 536061082..ed45c8640 100644
--- a/apps/acls/serializers/login_acl.py
+++ b/apps/acls/serializers/login_acl.py
@@ -53,6 +53,3 @@ class LoginACLSerializer(BulkModelSerializer):
 
     def get_rules_serializer(self):
         return RuleSerializer()
-
-    def get_reviewers_display(self, obj):
-        return ','.join([str(user) for user in obj.reviewers.all()])
diff --git a/apps/assets/serializers/mixin.py b/apps/assets/serializers/mixin.py
index 45943dc2a..e69de29bb 100644
--- a/apps/assets/serializers/mixin.py
+++ b/apps/assets/serializers/mixin.py
@@ -1,11 +0,0 @@
-from rest_framework import serializers
-from django.utils.translation import gettext_lazy as _
-
-
-class CategoryDisplayMixin(serializers.Serializer):
-    category_display = serializers.ReadOnlyField(
-        source='get_category_display', label=_("Category display")
-    )
-    type_display = serializers.ReadOnlyField(
-        source='get_type_display', label=_("Type display")
-    )