Add filter support for stack ps and services with Kubernetes

Signed-off-by: Mathieu Champlon <mathieu.champlon@docker.com>

cli/command/stack/services.go

@@ -37,7 +37,6 @@ func newServicesCommand(dockerCli command.Cli) *cobra.Command {
 	flags.BoolVarP(&opts.Quiet, "quiet", "q", false, "Only display IDs")
 	flags.StringVar(&opts.Format, "format", "", "Pretty-print services using a Go template")
 	flags.VarP(&opts.Filter, "filter", "f", "Filter output based on conditions provided")
-	flags.SetAnnotation("filter", "swarm", nil)
 	kubernetes.AddNamespaceFlag(flags)
 	return cmd
 }