diff --git a/libnetwork/system.go b/libnetwork/system.go
deleted file mode 100644
index 7beec2876a..0000000000
--- a/libnetwork/system.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package libnetwork
-
-import (
-	"fmt"
-	"runtime"
-	"syscall"
-)
-
-// Via http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b21fddd087678a70ad64afc0f632e0f1071b092
-//
-// We need different setns values for the different platforms and arch
-// We are declaring the macro here because the SETNS syscall does not exist in th stdlib
-var setNsMap = map[string]uintptr{
-	"linux/386":     346,
-	"linux/amd64":   308,
-	"linux/arm":     374,
-	"linux/ppc64":   350,
-	"linux/ppc64le": 350,
-	"linux/s390x":   339,
-}
-
-func setns(fd uintptr, flags uintptr) error {
-	ns, exists := setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)]
-	if !exists {
-		return fmt.Errorf("unsupported platform %s/%s", runtime.GOOS, runtime.GOARCH)
-	}
-
-	_, _, err := syscall.RawSyscall(ns, fd, flags, 0)
-	if err != 0 {
-		return err
-	}
-
-	return nil
-}