diff --git a/device/bindsocketshim.go b/device/bindsocketshim.go
deleted file mode 100644
index 896c7d2..0000000
--- a/device/bindsocketshim.go
+++ /dev/null
@@ -1,36 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
- */
-
-package device
-
-import (
-	"errors"
-
-	"golang.zx2c4.com/wireguard/conn"
-)
-
-// TODO(crawshaw): this method is a compatibility shim. Replace with direct use of conn.
-func (device *Device) BindSocketToInterface4(interfaceIndex uint32, blackhole bool) error {
-	if device.net.bind == nil {
-		return errors.New("Bind is not yet initialized")
-	}
-
-	if iface, ok := device.net.bind.(conn.BindSocketToInterface); ok {
-		return iface.BindSocketToInterface4(interfaceIndex, blackhole)
-	}
-	return nil
-}
-
-// TODO(crawshaw): this method is a compatibility shim. Replace with direct use of conn.
-func (device *Device) BindSocketToInterface6(interfaceIndex uint32, blackhole bool) error {
-	if device.net.bind == nil {
-		return errors.New("Bind is not yet initialized")
-	}
-
-	if iface, ok := device.net.bind.(conn.BindSocketToInterface); ok {
-		return iface.BindSocketToInterface6(interfaceIndex, blackhole)
-	}
-	return nil
-}