Eliminating "due date"

Eliminating "due date"

I don't use the "due date" function on my tickets.  It's just not something I use at all.

On the old Desk system, I could just "delete" the due date.  On the new version, I cannot.  So if someone sets things like Priority and Classification, I can change these to "none" but I cannot "blank out" the "Due Date" field.

Please advise on the method to remove a previously set Due Date completely in the new Desk version.

Either that, or let me know how I can actually prevent someone from even setting one in the first place (upon new ticket submission).  Idealy I would like to suppress certain fields so I don't have to bother with removing them.