Revert "Update abi spec more"
Revert "Update abi spec more"

This reverts commit c16712cc670a7a87fb078205030533b6a9b27ef1.

vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa