Disable validator slashing protection

[jmcruz1983]

Description

When using centralised signing with web3signer,
we can have a centralise slashing protection,
so for that we would like to have a parameter to
disable the local slashing protection in the lighthouse validator

Thanks

[michaelsproul]

This may also be alleviated by #1914, which I'm hoping to solve... any day now

[michaelsproul]

Implemented in #4981 but will need very thorough testing and review before we merge (i.e. won't make it for 4.6)

[ricardolyn]

@michaelsproul, thank you for the update. We've started testing and encountered an inconsistency: despite setting --disable-slashing-protection-web3signer, it appears that --init-slashing-protection is still required in the absence of a slashing protection database, even though we're using web3signer and it won't be utilized.

Could --init-slashing-protection be made optional when --disable-slashing-protection-web3signer is enabled? Thanks.

[michaelsproul]

@ricardolyn Good point! We can probably make that work. Do you mind opening a new issue?

Thanks

[ricardolyn]

thank you, created #5310