diff --git a/dags/common/repository.py b/dags/common/repository.py
index 4ea0173a..74f56f44 100644
--- a/dags/common/repository.py
+++ b/dags/common/repository.py
@@ -17,5 +17,3 @@ def save(self, filename, obj):
     def delete_all(self):
         raise NotImplementedError
 
-    def is_meta(self, filename):
-        raise NotImplementedError