eth/protocols/eth: remove Requests in block body

[islishude]

Block no longer has Requests.

It wasn't removed in #30425

[MariusVanDerWijden]

I think we also need to remove the requestHashes in eth/downloader/downloader_test.go:233

Otherwise the following diff will panic:

diff --git a/eth/downloader/fetchers_concurrent_bodies.go b/eth/downloader/fetchers_concurrent_bodies.go
index 56359b33c9..3d8a1576a0 100644
--- a/eth/downloader/fetchers_concurrent_bodies.go
+++ b/eth/downloader/fetchers_concurrent_bodies.go
@@ -90,6 +90,9 @@ func (q *bodyQueue) request(peer *peerConnection, req *fetchRequest, resCh chan
 func (q *bodyQueue) deliver(peer *peerConnection, packet *eth.Response) (int, error) {
        txs, uncles, withdrawals := packet.Res.(*eth.BlockBodiesResponse).Unpack()
        hashsets := packet.Meta.([][]common.Hash) // {txs hashes, uncle hashes, withdrawal hashes}
+       if len(hashsets) != 3 {
+               panic("adsfadsf")
+       }

[MariusVanDerWijden]

I think we also need to remove the emptyRequests check from EmptyBody in core/types/block.go.
Otherwise we might try to fetch a block that should not be fetched otherwise, but I'm not 100% sure here cc @lightclient @fjl

[islishude]

I think we also need to remove the emptyRequests check from EmptyBody in core/types/block.go.

It was removed in #30425

[MariusVanDerWijden]

Ah perfect, looks like I was on a wrong branch

[MariusVanDerWijden]

LGTM