network: Fix flow deletion command
network: Fix flow deletion command

`ovs-ofctl del-flows` doesn't accept flows that include the `action`
field.

mmussomele/quilt,LuiseV/quilt,tejasmanohar/quilt,kklin/kelda,quilt/quilt,stevenlin598/quilt,kayousterhout/quilt,NetSys/quilt,mmussomele/quilt,tejasmanohar/quilt,NetSys/quilt,NetSys/quilt,NetSys/quilt,tejasmanohar/quilt,kklin/quilt,kklin/quilt,quilt/quilt,kklin/kelda,kklin/quilt,stevenlin598/quilt,stevenlin598/quilt,quilt/quilt,quilt/quilt,kklin/kelda,mmussomele/quilt,stevenlin598/quilt,stevenlin598/quilt,ejj/quilt-dev,ejj/quilt-dev,tejasmanohar/quilt,PenguinToast/quilt,ejj/quilt-dev,mmussomele/quilt,stevenlin598/quilt,kayousterhout/quilt,mmussomele/quilt,LuiseV/quilt,kelda/kelda,mmussomele/quilt,LuiseV/quilt,LuiseV/quilt,ejj/quilt-dev,PenguinToast/quilt,kklin/quilt,kayousterhout/quilt,PenguinToast/quilt,kklin/kelda,PenguinToast/quilt,kayousterhout/quilt,NetSys/quilt,kelda/kelda,kelda/kelda,kelda/kelda,PenguinToast/quilt,LuiseV/quilt