AllCampaignsRemastered - Updated mod for all Campaigns

And where do I remove them, in Map.xdb?

You can create a random map in the editor, click on map properties, select artifacts, select all, remove the unnecessary ones, and save the map. Change the map extension from h5m to zip, open it, open the map in Notepad, copy all the artifacts from artifactIDs, and place them in the desired map. In maps that already have a list of artifacts, simply remove the set shadow artifact.