diff --git a/packages/endo/src/lockdown.js b/packages/endo/src/lockdown.js
deleted file mode 100644
index 7095b6e19a..0000000000
--- a/packages/endo/src/lockdown.js
+++ /dev/null
@@ -1,6 +0,0 @@
-/* global lockdown */
-import "ses";
-
-lockdown({
-  errorTaming: "unsafe"
-});