## Issue Addressed
N/A
## Proposed Changes
We were currently downscoring a peer for sending us a block that we already have in fork choice. This is unnecessary as we get duplicates in lighthouse only when
1. We published the block, so the block is already in fork choice
2. We imported the same block over rpc
In both scenarios, the peer who sent us the block over gossip is not at fault.
This isn't exploitable as valid duplicates will get dropped by the gossipsub duplicate filter