message: Minor refactor of enumeration in tests in note_encryption.rs
diff: @@ -1025,7 +1025,7 @@ mod tests {
  ];
  let leadbytes = [0x02, 0x03, 0x01];
  - for (_i, (&height, &leadbyte)) in heights.iter().zip(leadbytes.iter()).enumerate() {
  + for (&height, &leadbyte) in heights.iter().zip(leadbytes.iter()) {
  let (ovk, ivk, cv, cmu, epk, mut enc_ciphertext, out_ciphertext) =
  random_enc_ciphertext(height, &mut rng);
  @@ -1202,7 +1202,7 @@ mod tests {
  ];
  let leadbytes = [0x02, 0x03, 0x01];
  - for (_i, (&height, &leadbyte)) in heights.iter().zip(leadbytes.iter()).enumerate() {
  + for (&height, &leadbyte) in heights.iter().zip(leadbytes.iter()) {
  let (ovk, ivk, cv, cmu, epk, mut enc_ciphertext, out_ciphertext) =
  random_enc_ciphertext(height, &mut rng);
  @@ -1472,7 +1472,7 @@ mod tests {
  ];
  let leadbytes = [0x02, 0x03, 0x01];
  - for (_i, (&height, &leadbyte)) in heights.iter().zip(leadbytes.iter()).enumerate() {
  + for (&height, &leadbyte) in heights.iter().zip(leadbytes.iter()) {
  let (ovk, _, cv, cmu, epk, mut enc_ciphertext, out_ciphertext) =
  random_enc_ciphertext(height, &mut rng);
  