refactor: remove obsolete test comment
@@ -2,7 +2,6 @@ use ipfs::{Block, Node};
use libipld::cid::{Cid, Codec};
use multihash::Sha2_256;
-/// Discovers a peer via mdns and exchanges a block through bitswap.
#[async_std::test]
async fn exchange_block() {
env_logger::init();
