I would also like to exclude that stuff (although it is really no a lot and hardly makes a difference in my case), and I found this, which at first glance looks like it would be a solution:
look for “Package Black List” almost at the bottom.
However I have not been able to get this to work, the blacklist text files are never applied.
If you get this to work for a Windows64 build (Shipping or Development), please let me know how.