remove/refactor proptree.lua

for some reason theres a lot of changes to this, so trees do more things, ect. problem is that it doesnt seem to work. in most cases the trees just disappear, no fire or anything.

atm this is a regression from the main game but in the long run it could be refactored so it works as intended, or rewritten to include the new features again,

also bear in mind that having this be so destructive is bad for compatibility, especially when there are some tree changes due to come in faf soon™