diff --git a/src/ambient-context/dls.ml.tmp b/src/ambient-context/dls.ml.tmp
deleted file mode 100644
index dee2dc49..00000000
--- a/src/ambient-context/dls.ml.tmp
+++ /dev/null
@@ -1,46 +0,0 @@
-(* TODO: conditional compilation, and use Basic_map in each DLS *)
-
-(** Storage using DLS. *)
-
-open Opentelemetry_ambient_context_core
-
-open struct
-  module DLS = Domain.DLS
-
-  module Int_map = Map.Make (struct
-    type t = int
-
-    let compare : t -> t -> int = Stdlib.compare
-  end)
-
-  (* key used to access the context *)
-  let dls_k_context : Context.t ref Int_map.t DLS.key =
-    DLS.new_key
-      ~split_from_parent:(fun _ -> Int_map.empty)
-      (fun _ -> Int_map.empty)
-
-  let dls_get () =
-    let tid = Thread.id @@ Thread.self () in
-    let map_ref = DLS.get dls_k_context in
-    try !(Int_map.find tid map_ref) with Not_found -> Hmap.empty
-
-  let dls_with ctx f =
-    let tid = Thread.id @@ Thread.self () in
-    let map = DLS.get dls_k_context in
-    let ctx_ref =
-      try Int_map.find tid map
-      with Not_found ->
-        let r = ref Context.empty in
-        DLS.set dls_k_context (Int_map.add tid r map);
-        r
-    in
-
-    let old_ctx = !ctx_ref in
-    ctx_ref := ctx;
-
-    let finally () = ctx_ref := old_ctx in
-    Fun.protect ~finally f
-end
-
-let storage : Storage.t =
-  { name = "dls-int-map"; get_context = dls_get; with_context = dls_with }