diff --git a/lib/osutil/net.go b/lib/osutil/net.go
deleted file mode 100644
index baddcd532..000000000
--- a/lib/osutil/net.go
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (C) 2015 The Syncthing Authors.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package osutil
-
-import (
-	"net"
-)
-
-func interfaceAddresses(network string, intf *net.Interface) []string {
-	var out []string
-	addrs, err := intf.Addrs()
-	if err != nil {
-		return out
-	}
-
-	for _, addr := range addrs {
-		ipnet, ok := addr.(*net.IPNet)
-		if ok && (network == "tcp" || (network == "tcp4" && len(ipnet.IP) == net.IPv4len) || (network == "tcp6" && len(ipnet.IP) == net.IPv6len)) {
-			out = append(out, ipnet.IP.String())
-		}
-	}
-
-	return out
-}