This is not a very good idea.
There are several options, the easiest to hide not necessary parameters in the creation / editing product, assigning them to the default values, global parameters better not touch (since X-Cart will cease to work or not work correctly).
In any case, you have to understand what to do and why?
If you plan to use the additional modules of X-Cart or other producers, better yet do not change
Save a lot of money and time later.