diff --git a/src/c3nav/editor/wrappers.py b/src/c3nav/editor/wrappers.py
deleted file mode 100644
index 50be21bb..00000000
--- a/src/c3nav/editor/wrappers.py
+++ /dev/null
@@ -1,3 +0,0 @@
-def is_created_pk(pk):
-    return isinstance(pk, str) and pk.startswith('c') and pk[1:].isnumeric()
-