[audit] timestamp.move

[lightmark]

Description

nits

Test Plan

---

This change is 

[movekevin]

This is unnecessary but is technically a no-op if (proposer == @vm_reserved) so more of a cleanup? :)

[lightmark]

save gas? lol.

[movekevin]

I'd not worry about gas for this one line. It's trivial.

[lightmark]

I am kidding tho

[github-actions]

✅ Forge suite compat success on 843b204dce971d98449b82624f4f684c7a18b991 ==> 94c94b04d81acb6840459a72a9a4dee022dcc3f7

Compatibility test results for 843b204dce971d98449b82624f4f684c7a18b991 ==> 94c94b04d81acb6840459a72a9a4dee022dcc3f7 (PR)
1. Check liveness of validators at old version: 843b204dce971d98449b82624f4f684c7a18b991
compatibility::simple-validator-upgrade::liveness-check : 7818 TPS, 4599 ms latency, 6700 ms p99 latency,no expired txns
2. Upgrading first Validator to new version: 94c94b04d81acb6840459a72a9a4dee022dcc3f7
compatibility::simple-validator-upgrade::single-validator-upgrade : 5349 TPS, 7173 ms latency, 9300 ms p99 latency,no expired txns
3. Upgrading rest of first batch to new version: 94c94b04d81acb6840459a72a9a4dee022dcc3f7
compatibility::simple-validator-upgrade::half-validator-upgrade : 4966 TPS, 8160 ms latency, 13800 ms p99 latency,no expired txns
4. upgrading second batch to new version: 94c94b04d81acb6840459a72a9a4dee022dcc3f7
compatibility::simple-validator-upgrade::rest-validator-upgrade : 8096 TPS, 4474 ms latency, 8100 ms p99 latency,no expired txns
5. check swarm health
Compatibility test for 843b204dce971d98449b82624f4f684c7a18b991 ==> 94c94b04d81acb6840459a72a9a4dee022dcc3f7 passed
Test Ok

• Grafana dashboard
• Humio Logs
• Test runner output
• Test run is land-blocking

[github-actions]

✅ Forge suite land_blocking success on 94c94b04d81acb6840459a72a9a4dee022dcc3f7

performance benchmark with full nodes : 7721 TPS, 5144 ms latency, 8100 ms p99 latency,(!) expired 160 out of 3297400 txns
Test Ok

• Grafana dashboard
• Humio Logs
• Test runner output
• Test run is land-blocking