Remove substreams support #6261
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fordN
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Jan 8, 2026
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lgtm! Seems to me like a clean cut.
This was only used for substreams
We need to eventually fix that, but that requires quite a bit of change. For now, we suppress the clippy warning.
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Substreams have been unsupported on the network for quite some time now. Since the code backing substreams is substantial and introduced quite a few parallel code paths, it's best to remove it.
This PR removes most of the code for it, though there might still be some places where now dead substreams code lingers. There are probably also various opportunities to simplify code further now that a lot of the bifurcation of logic that substreams added has been removed. This PR does not address that yet, we should address that over time as we make changes to code that can be simplified further.