Clean up make targets
Over in !4430 (merged) @stanhu noticed some make targets that no longer exist (they were removed in !4323 (merged)). We should go over the Makefiles and make sure targets that no longer exist are being called from other targets/scripts, and update documentation accordingly. @ggeorgiev_gitlab can we make this part of the mage
rewrite?
Edited by Axel von Bertoldi