code: func (h *Handle) AddrDel(link Link, addr *Addr) error {
  	req := h.newNetlinkRequest(unix.RTM_DELADDR, unix.NLM_F_ACK)
  	return h.addrHandle(link, addr, req)
  }
docs: // AddrDel will delete an IP address from a link device.
  // Equivalent to: `ip addr del $addr dev $link`