The purpose of this ticket is to modify the DropDatabase DDL so that it deletes the metadata entry for the database related to DDL operation from the shard-local replicated collection.

The implementation needs to ensure that the DropDatabase coordinator sends a delete to the new collection `config.shard.databases` from the primary shard of the database where the coordinator is being executed. This ticket specifically focuses on deleting the entry within the critical section, without addressing any further complexities from the technical design.