Remove deprecated feature for loading existing seeds

requested review from @henk

assigned to @marten

requested review from @jornvandebeek

approved this merge request

quby-compiler kan ook nog een bundle update gebruiken voor mijn outcome_table wijziging. Verder LGTM

'Remove deprecated feature for loading existing seeds' is goedgekeurd @marten

resolved all threads

mentioned in commit c3b628e0

merged