diff --git a/redash/models.py b/redash/models.py
index 062d23e9..1b0111e3 100644
--- a/redash/models.py
+++ b/redash/models.py
@@ -849,10 +849,6 @@ class AccessPermission(BaseModel):
             object_type=object_type, grantee=grantee, access_type=access_type)
         return permissions.count() > 0
 
-    @staticmethod
-    def reset(object_type, object_id, access_type):
-        revoke_permission(object_type=object_type, object_id=object_id, access_type=access_type)
-
     def to_dict(self):
         d = {
             'id': self.id,
@@ -866,7 +862,6 @@ class AccessPermission(BaseModel):
 
 
 class Change(BaseModel):
-
     id = peewee.PrimaryKeyField()
     object_id = peewee.CharField(index=True)
     object_type = peewee.CharField(index=True)
diff --git a/tests/handlers/test_access.py b/tests/handlers/test_access.py
index e916feb3..b103fb35 100644
--- a/tests/handlers/test_access.py
+++ b/tests/handlers/test_access.py
@@ -2,6 +2,7 @@ from redash import models
 from tests import BaseTestCase
 from tests.test_handlers import AuthenticationTestMixin
 
+
 class QueryAccessPermissionsTest(BaseTestCase, AuthenticationTestMixin):
     def setUp(self):
         self.paths = ['/api/queries/1/acl']