Summary:

* this causes undesirable behavior with some of our queries when we add
multiple proxy backends.
* we don't need this data so, lets remove it. It should fall out of
scope from the tsdb in time, without issue.

Test Plan:

cargo build

---
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### Type of Change (Check all that apply)

- [ ] user-visible impact
- [ ] breaking change for a client SDKs
- [ ] breaking change for FNs (FN binary must upgrade)
- [ ] breaking change for validators or node operators (must upgrade
binaries)
- [ ] breaking change for on-chain data layout
- [ ] necessitate either a data wipe or data migration

### Release notes