## Proposed Changes
This PR deletes all `remote_signer` code from Lighthouse, for the following reasons:
* The `remote_signer` code is unused, and we have no plans to use it now that we're moving to supporting the Web3Signer APIs: #2522
* It represents a significant maintenance burden. The HTTP API tests have been prone to platform-specific failures, and breakages due to dependency upgrades, e.g. #2400.
Although the code is deleted it remains in the Git history should we ever want to recover it. For ease of reference:
- The last commit containing remote signer code: 5a3bcd2904
- The last Lighthouse version: v1.5.1