We removed openssl support from go-libp2p and thus Kubo:
- https://github.com/libp2p/go-libp2p/issues/1952
Now we exclusively on the options provided by the golang std librairy.
The openssl tag is now a noop, having it does not cause any harm except
making nixos install openssl for no reason while using kubo but I guess
many systems already build openssl but might as well not have it.
https://github.com/ipfs/kubo/releases/tag/v0.20.0
When creating a repository with `ipfs init`, `--empty-repo=true` is now the default according to the changelog. Modify the NixOS module to reflect this change and fix the `emptyRepo` setting to work with this change.
