1 files changed, 1 insertions, 7 deletions

diff --git a/src/lib/libcrypto/ecdh/ech_local.h b/src/lib/libcrypto/ecdh/ech_local.h
index 44aa2cf250..7e2dfd8c43 100644
--- a/src/lib/libcrypto/ecdh/ech_local.h
+++ b/src/lib/libcrypto/ecdh/ech_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_local.h,v 1.5 2023/06/25 19:14:14 tb Exp $ */
+/* $OpenBSD: ech_local.h,v 1.6 2023/06/25 19:20:57 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 2000-2005 The OpenSSL Project.  All rights reserved.
  *
@@ -60,12 +60,6 @@
 
 __BEGIN_HIDDEN_DECLS
 
-/*
- * ECDH Key Derivation Function as defined in ANSI X9.63.
- */
-int ecdh_KDF_X9_63(unsigned char *out, size_t outlen, const unsigned char *Z,
-    size_t Zlen, const unsigned char *sinfo, size_t sinfolen, const EVP_MD *md);
-
 __END_HIDDEN_DECLS
 
 #endif /* !HEADER_ECH_LOCAL_H */