Originally Posted by
Vragos
Since we can't delete most DB entries, only add or modify them this is pretty much impossible. If you delete an entry in building_tech_required table, it will simply use the vanilla one. If you change the tech to something else, it will insist that you have both the vanilla and the "new" tech you added.
I say pretty much, because you can work around it though. You would have to make a new building, put that in the building chain before encampment and then assign that building to be unlocked earlier in the tech, or require no tech at all.