Revert commit "generalize_unused_trans"

This reverts commit 879f0f524ca1962344426d5cbafa4aaeda4657c8.
Revert the commit "houndci_change"

This reverts commit f27ff94caec2c7924e462b1a4c90c39892c0e9fa.
Revert commit "generalization via var passing"

This reverts commit 29c3bc5a9acc99ff62b59c82d75c57ab0417de8e.
Revert commit "Merge branch '446_generalize_ontohub' of github.com:ontohub/ontohub into 446_generalize_ontohub"

This reverts commit ccc4afd9c1d3d5ad1d4df424e3e4d40c80e49e63, reversing
changes made to 71013b4ddd4a6ee133b239eb861f06bdd1a0578d.