diff --git a/extra/new-effects/new-effects.factor b/extra/new-effects/new-effects.factor
deleted file mode 100644
index f073ccadd3..0000000000
--- a/extra/new-effects/new-effects.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-USING: assocs kernel sequences ;
-IN: new-effects
-
-: new-nth ( seq n -- elt )
-    swap nth ; inline
-
-: new-set-nth ( seq obj n -- seq )
-    pick set-nth ; inline
-
-: new-at ( assoc key -- elt )
-    swap at ; inline
-
-: new-at* ( assoc key -- elt ? )
-    swap at* ; inline
-
-: new-set-at ( assoc value key -- assoc )
-    pick set-at ; inline