message: Remove unused `mut`
diff: @@ -471,7 +471,7 @@ where
  return Err(VerifyError::IncorrectPubicInputLength(index.public));
  }
  let elm: Vec<_> = proof.public.iter().map(|s| -*s).collect();
  - let mut public_comm = PolyComm::<G>::multi_scalar_mul(&com_ref, &elm);
  + let public_comm = PolyComm::<G>::multi_scalar_mul(&com_ref, &elm);
  //~ 1. Run the [Fiat-Shamir argument](#fiat-shamir-argument).
  let OraclesResult {
  