Remove SPM

[faddat]

The cosmos hub contains a deprecated software component. Today I was working with a team member to fix issues with queries that are mentioned in #2313.

 gaia % go mod tidy
go: downloading github.com/cosmos/cosmos-sdk v0.45.16-ics
go: github.com/tendermint/spm@v0.1.9 requires
	github.com/cosmos/cosmos-sdk@v0.44.3: reading github.com/cosmos/cosmos-sdk/go.mod at revision v0.45.16-ics: unknown revision v0.45.16-ics

Here's various related work:

• Remove spm interchain-security#812

This removes ICS from the hub and allows these fixes to happen.

• bump: sdk v0.45.15-ics interchain-security#805

That makes the hubs sdk version match the one used in ics. Hub main branch uses 45.15. Ics should too.

• use ibc v4.3.0 interchain-security#823

That will make ics use the latest IBC. The hub should do that too.

So, thing is, if you try and use a patched cosmos-sdk, as we did here:

[mpoke]

@faddat Thank you for opening an issue. Could you please give more context on the problem and the desire closing criteria?

Also note that at the moment there is no v0.45.16-ics release. The latest is v0.45.15-ics.

go: downloading github.com/cosmos/cosmos-sdk v0.45.16-ics

[faddat]

I am here to provide more information if needed. So you see SPM is an archived repository that was last worked on in January of 2022. It has caused chain halts.

It has also broken CLIs, and it causes chains to diverge from the normal path of development. Now in Gaia case, it may not be that severe, however, it's really best that it just not be in our precious Gaia.

[mpoke]

Is #2442 going to fix this issue?

[mpoke]

Fixed by #2442