[ci] remove remaining RDS dependency
With https://github.com/pytorch/pytorch/pull/79366, the only remaining
use case for RDS is import latency stats. Afaik we do not look at these,
so removing, which eliminates our last dependency on RDS.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79370
Approved by: https://github.com/janeyx99
