I guess there isn't, they are "burned" into the save file itself, unlike Workshop or Nexus mods. One Workshop mod screwed my save, where I was almost at the finale, just because it became unsupported, didn't work with one of the Larian mods anymore (the author made another version, so I had to start from the beginning and enable that new mod instead). Maybe hex editing, but I could bet all my money, on that it would corrupt your save.