1 files changed, 0 insertions, 2 deletions
diff --git a/lib/lists.nix b/lib/lists.nix
index 6c7773304de..4b5f04a6758 100644
--- a/lib/lists.nix
+++ b/lib/lists.nix
@@ -227,6 +227,4 @@ in rec {
 
   crossLists = f: foldl (fs: args: concatMap (f: map f args) fs) [f];
 
-  # List difference, xs - ys. Removes elements of ys from xs.
-  difference = xs: ys: filter (y: !(builtins.elem y ys)) xs;
 }