diff --git a/windows/aliases.go b/windows/aliases.go
index ce2d713d6..16f90560a 100644
--- a/windows/aliases.go
+++ b/windows/aliases.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build windows && go1.9
+//go:build windows
 
 package windows
 
diff --git a/windows/empty.s b/windows/empty.s
deleted file mode 100644
index ba64caca5..000000000
--- a/windows/empty.s
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2019 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.
-
-//go:build !go1.12
-
-// This file is here to allow bodyless functions with go:linkname for Go 1.11
-// and earlier (see https://golang.org/issue/23311).