I believe you are looking for deleting the unused list items to reduce the module size. In that case, you are talking about sparsity in your model (Empty cells in the module). There are so many ways you could reduce the sparsity.
I would suggest you use the list subset in your list and use this subset list as part of your module dimension.
When I say subset you would be selecting only list item that is required for your module (carries data) and also easy to maintain. You can also maintain this subset through simple boolean import as well.