diff --git a/src/hb-algs.hh b/src/hb-algs.hh
index c3467800b..e0700100b 100644
--- a/src/hb-algs.hh
+++ b/src/hb-algs.hh
@@ -86,9 +86,6 @@ struct
   (hb_deref_pointer (hb_forward<Appl> (a)) (hb_forward<Vals> (vs)...))
 
   public:
-  template <typename Appl, typename Val1, typename ...Vals> auto
-  impl2 (Appl&& a, hb_priority<2>, Val1 &&v1, Vals &&...vs) const HB_AUTO_RETURN
-  (hb_deref_pointer (hb_forward<Val1> (v1)).*hb_forward<Appl> (a) (hb_forward<Vals> (vs)...))
 
   template <typename Appl, typename ...Vals> auto
   operator () (Appl&& a, Vals &&...vs) const HB_AUTO_RETURN