Looking at the history of these packages over the past several years, there haven't been any meaningful contributions or usages: https://github.com/ethereum/go-ethereum/commits/master/p2p/simulations?before=de6d5976794a9ed3b626d4eba57bf7f0806fb970+35 Almost all of the commits are part of larger refactors or low-hanging-fruit contributions. Seems like it's not providing much value and taking up team + contributor time.
This change moves the RLPx protocol implementation into a separate package, p2p/rlpx. The new package can be used to establish RLPx connections for protocol testing purposes. Co-authored-by: Felix Lange <fjl@twurst.com>