suppress debugging message for the following situation: - kernel presented an ACQUIRE message to IKE daemon (with sequence number for   a larval SA) - larval SA expires - IKE daemon failed to negotiate - IKE daemon sends ACQUIRE(2), to remove larval SA, but there's none
suppress debugging message for the following situation:
- kernel presented an ACQUIRE message to IKE daemon (with sequence number for
  a larval SA)
- larval SA expires
- IKE daemon failed to negotiate
- IKE daemon sends ACQUIRE(2), to remove larval SA, but there's none

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame