diff --git a/unix/asm.s b/unix/asm.s
deleted file mode 100644
index 8ed2fdb..0000000
--- a/unix/asm.s
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-#include "textflag.h"
-
-TEXT ·use(SB),NOSPLIT,$0
-	RET