Unlike other Assets that are removed from the View Assets list after you do a Dispose transaction, Multi-Quantity Assets are left on the list with a quantity of 0.

This is done because you may only temporarily have 0 on hand, but plan to add more quantity in the future.

To delete the Multi-Quantity Asset, after you have Disposed all of the quantity, go to View Asset Type, locate the Asset Type for the Multi-Quantity Asset, check its box, and click Delete.