match keyword in pf for "no" action

[pavel pocheptsov]

I know about changes in PF sintax:
###################################################
   nat on $ext_if from 10/8 -> ($ext_if)
   rdr on $ext_if to ($ext_if) -> 1.2.3.4becomes
   match out on $ext_if from 10/8 nat-to ($ext_if)
   match in on $ext_if to ($ext_if) rdr-to 1.2.3.4
####################################################

and all is work fine.
but how to use previosly used:

"no rdr on $ext_if inet proto tcp from <spamd-bypass> to port smtp"

actually how to use "no" key for nat and rdr rules?
I do this to connect goodgays directly to sendmail in next pass-rule.