This feature is dangerous, barely maintained and not covered by any CI.
As it was hidden behind a configuration option, we can remove it without
breaking our API contract too much. This change deprecates the option,
and create an API version with this feature already de-activated.
Change-Id: I9e05c36b8c1194f4eeeb80c1f811e808854974c4
Partial-Bug: #1654318