message: Removing len from network/onchain-discovery/src/types.rs
  Closes:
  Approved by: huitseeker
diff: @@ -160,10 +160,6 @@ impl DiscoverySetInternal {
  pub fn empty() -> Self {
  Self(HashMap::new())
  }
  -
  - pub fn len(&self) -> usize {
  - self.0.len()
  - }
  }
  #[derive(Clone, Debug, Eq, PartialEq)]
  