They are not being used any more. For some reason people thought that an exception was made for extruders or something. And people keep adding them for the definition files too. I'll add a test to prevent that.
We had changed it for all printers back when we changed the prime tower position to a formula, but since then we've been getting new printer definitions that were made from templates floating around with the old structure.
We should really have an automated test for this.
Discovered during review of #6518.
I've been having this profile added via a symlink so that it would update itself. I didn't know that symlinks were possible in Git.
Contributes to issue CURA-6742.