I recently deleted a software Updates deployment package that was created by an ADR (I deleted the ADR also). I've since created a new deployment package that's working fine. However, my distmgr inbox is still getting flooded with DMD files from all my DPs referencing the deleted package, and dealing with them is occupying all the available threads in distmgr, not to mention filling up the distmgr.log. The strange thing is the package wasn't even configured for on-demand distribution.
How can I stop these DMD files from being generated?