In SERVER-62375 we removed the code that waited for all transaction coordinator documents to be deleted in case of FCV change.

We added a new field to TransactionCoordinatorDocument, which was marked as `strict` in earlier releases, so we need that code again.

There is a chance that we would need this code in the future (as we already needed it twice since 6.0). So maybe instead of removing it afterward, we can guard it with server parameter/feature flag/something.