diff --git a/ed/refs/sourcemap.json b/ed/refs/sourcemap.json
deleted file mode 100644
index a95890389f5d..000000000000
--- a/ed/refs/sourcemap.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  "spec": {
-    "title": "Source map format specification",
-    "url": "https://tc39.es/ecma426/"
-  },
-  "refs": {
-    "normative": [],
-    "informative": [
-      {
-        "name": "BASE64",
-        "url": "https://www.ietf.org/rfc/rfc4648.txt"
-      },
-      {
-        "name": "WasmNamesBinaryFormat",
-        "url": "https://www.w3.org/TR/wasm-core-2/#names%E2%91%A2"
-      }
-    ]
-  }
-}
\ No newline at end of file