config option to disable automatic providing

[whyrusleeping]

With large scale data transfers, the current dht content routing system takes wayyyy too much bandwidth and time. We should add an option to the config that constructs bitswap in offline mode so that adds and transfers can avoid providing automatically. Users of this feature can choose to manually provide via ipfs dht provide

I really want this for some of my tests, i'm transferring terabytes of data and providers are using an absurd amount of my upload.

[whyrusleeping]

Also, with this, it would be nice to have a test that checks the dht for providers to confirm nothing was provided.

[whyrusleeping]

cc @magik6k, I think this is relevant to the reprovider strategies work

[magik6k]

There is now add --local and reprovider can be disabled in config. Other than that this will be solved by #3813.

[eingenito]

Should be solved by #6292

[michaelavila]

You can use the Strategic Provider to solve this problem. Closing this issue.

[lidel]

Asking users to enable Strategic Providing to disable providing is really not a good UX 🙃

We should add none as a valid option in Reprovider.Strategy