Delete command tokens will persist if indexer restarts with in 24Hrs

When a delete command token exists in metaKV, indexer tries to delete it every 24Hrs.

a. This limit of 24 Hrs is not configurable. We need to make it configurable

b. If indexers restart within 24 hours, then these tokens may not be removed from metaKV causing a leak. Even if one indexer is active for more than 24 Hrs, then the tokens will be removed. However, this logic needs to be made more robust