This reverts PR #12416 and commit 6668ce022a.
While the driver options are well and truly deprecated, this documentation also
covers features like `fingerprint.denylist` that are not available any other
way. Let's revert this until #12420 is ready.
The client configuration options for drivers have been deprecated
since 0.9. We haven't torn them out completely but because they're
deprecated it's been hard to guarantee correct behavior. Remove the
documentation so that users aren't misled about their viability.
