If I understood correctly, you want to keep only one version per day regardless of the number of transactions done on that day. The problem in achieving this is that if you delete any of the versions in a delta table, you will lose the ability to time travel to any version before that.
The only way I think this is achievable is by keeping some sort of record(in a separate table perhaps) of the latest version for each day and use information from there to do a time travel