How do you undeploy a BizTalk 2010 ESB 2.1 itinerary?

I can see the `EsbImportUtil.exe` in `C:\Program Files (x86)\Microsoft BizTalk ESB Toolkit 2.1\Bin`, but there isn't a corresponding *undeploy* tool.

Or is it a brute force `DELETE FROM dbo.Itinerary WHERE XXX` !!