unix: remove duplicate build tag
Remove a duplicate build tag in unix/flock.go. Keep the alphabetically
sorted version below the copyright header.
Change-Id: Ie3a6e5e01e5e4114960fdf63111a68d3b2b8de47
Reviewed-on: https://go-review.googlesource.com/51051
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/unix/flock.go b/unix/flock.go
index ce67a59..2994ce7 100644
--- a/unix/flock.go
+++ b/unix/flock.go
@@ -1,5 +1,3 @@
-// +build linux darwin freebsd openbsd netbsd dragonfly
-
// 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.
