CIP-1694 | A few smaller changes

[WhatisRT]

These are changes that we wanted to make for a while but were too busy and didn't make it in time for the previous merge.

• All governance actions are now enacted one epoch after they have been ratified. This is necessary to comply with requirements coming from moving the stake distribution to disk.
• Remove dropping of governance actions in favour of delaying. The only effect this has is that if a NoConfidence GA is enacted and a new committee is elected later, any non-expired GAs can still be voted on and enacted (but the new committee has to approve them explicitly!).
• Make the DRep registration not required. This improves liquidity of democracy.

[Ryun1]

• Make the DRep registration not required. This improves liquidity of democracy.

I am not a fan of this, I think this adds some unneeded complexity which may result in considerable confusion for participants. For me this adds confusion around DRep's role and how delegation to them works.

• What happens if you delegate to registered DRep but then vote for yourself?
• Can one delegate voting power to an unregistered DRep?
• Is there differences between unregistered and registered DRep votes on-chain?
• Is there benefits for people to become registered DReps?
• What happens if there is a large amount of stake associated with unregistered DReps, with such stake not included in AVT, could it be used to swing votes?

For me, the requirement of submitting a DRep registration is a very low hurdle for people to be able to vote and thus participate in Liquid Democracy.

[WhatisRT]

Let me just clarify a few things. In the currently published design:

• You can already delegate voting power to an unregistered DRep
• You can already vote as an unregistered DRep
• If you do those two things, the vote/stake is actively excluded from the results

All this change does is to not actively remove those votes. It simplifies the design (we need to do/check less things) and it means that DReps can't make the right to have your vote counted impossible to obtain by setting the deposit to an astronomical value.