Untie staking from genesis

[sabau]

Summary

Currently the staking module seems vital to boot any dapp built on top of the SDK

Problem Definition

Would be nice to remove this necessity, have the genesis and all the basic features working without specific modules, or modules that not every app should use.

@fedekunze @rigelrozanski @alexanderbez @jackzampolin

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[rigelrozanski]

As the code is already structured you should be able to get rid of the staking module entirely when dealing with app genesis. however you should simply not be importing any genutil client code that has to do with genesis-transactions (which are dependant on staking currently) - that abstraction will come soon to allow for custom staking for gen-txs, but further refactors will be required

[alexanderbez]

Hmmm, how do you plan on providing the validator set to tendermint? Just statically defined/POA style?

[rigelrozanski]

Yeah the expected types for this decoupled genutil will need to have certain key information pertaining to pubkey/power which will input into tendermint

[fedekunze]

I believe most parts of this issue was resolved with the module gen refactor. I can tackle the rest once #4757 is merged

[rigelrozanski]

@fedekunze I've broken out part of this issue to #4771 which should be taken on independantly (and isn't a particularly easy task I don't think)

[fedekunze]

@rigelrozanski I was thinking of using expected interfaces/dummies for the staking MsgCreateValidator instead. But as your approach is more general I guess we can then close this issue

[rigelrozanski]

roger