remove unused p2p adapter

[menduz]

What?

Removes unused code, lighthouse is still used as P2P communications adapter

Why?

...

[github-actions[bot]]

Test this pull request

• This branch can be previewed at https://play.decentraland.zone/?kernel-branch=remove-p2p-adapter
• The @dcl/kernel package can be tested in scenes by running

  npm install "https://sdk-team-cdn.decentraland.org/@dcl/kernel/branch/remove-p2p-adapter/dcl-kernel-2.0.0-4005706383.commit-613f746.tgz"