@@ -712,7 +712,7 @@ func buildRouters(opts routerOptions) []router.Router {

 	routers := []router.Router{

 		// we need to add the checkpoint router before the container router or the DELETE gets masked

-		checkpointrouter.NewRouter(opts.daemon, decoder),

+		checkpointrouter.NewRouter(opts.daemon),

 		container.NewRouter(opts.daemon, decoder, opts.daemon.RawSysInfo().CgroupUnified),

 		image.NewRouter(

 			opts.daemon.ImageService(),

@@ -1,22 +1,19 @@

 package checkpoint

 import (

-	"github.com/docker/docker/daemon/server/httputils"

 	"github.com/docker/docker/daemon/server/router"

 )

 // checkpointRouter is a router to talk with the checkpoint controller

 type checkpointRouter struct {

 	backend Backend

-	decoder httputils.ContainerDecoder

 	routes  []router.Route

 }

 // NewRouter initializes a new checkpoint router

-func NewRouter(b Backend, decoder httputils.ContainerDecoder) router.Router {

+func NewRouter(b Backend) router.Router {

 	r := &checkpointRouter{

 		backend: b,

-		decoder: decoder,

 	}

 	r.initRoutes()

 	return r