Summary:
As titled. This is the same as https://github.com/facebook/rocksdb/issues/6788 but for range tombstones written through `SstFileWriter` rather than through `DB`.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11322

Reviewed By: cbi42

Differential Revision: D44317733

Pulled By: ajkr

fbshipit-source-id: f6eb8791ae2c09c169b6bfe0d047449d924b377e