message: Simplify GetBlockHeader::range()
diff: @@ -572,11 +572,7 @@ pub mod command {
  impl GetBlockHeader {
  pub fn tip() -> Self { GetBlockHeader { from: vec![], to: None } }
  pub fn range(from: &[cardano::block::HeaderHash], to: cardano::block::HeaderHash) -> Self {
  - let mut vec = Vec::new();
  - for f in from.iter() {
  - vec.push(f.clone());
  - }
  - GetBlockHeader { from: vec, to: Some(to) }
  + GetBlockHeader { from: from.clone().to_vec(), to: Some(to) }
  }
  }
  