halo2_proofs: Fix clippy lints

Author: str4d

halo2_proofs/src/poly/multiopen.rs

@@ -107,9 +107,9 @@ impl<'r, 'params: 'r, C: CurveAffine> Eq for CommitmentReference<'r, 'params, C>
 
 impl<'r, 'params: 'r, C: CurveAffine> Hash for CommitmentReference<'r, 'params, C> {
     fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
-        match self {
-            &CommitmentReference::Commitment(a) => std::ptr::hash(a, state),
-            &CommitmentReference::MSM(a) => std::ptr::hash(a, state),
+        match *self {
+            CommitmentReference::Commitment(a) => std::ptr::hash(a, state),
+            CommitmentReference::MSM(a) => std::ptr::hash(a, state),
         }
     }
 }

halo2_proofs/src/poly/multiopen/prover.rs

@@ -108,7 +108,7 @@ where
 
     let x_4: ChallengeX4<_> = transcript.squeeze_challenge_scalar();
 
-    let (p_poly, p_poly_blind) = q_polys.into_iter().zip(q_blinds.into_iter()).fold(
+    let (p_poly, p_poly_blind) = q_polys.into_iter().zip(q_blinds).fold(
         (q_prime_poly, q_prime_blind),
         |(q_prime_poly, q_prime_blind), (poly, blind)| {
             (

halo2_proofs/src/poly/multiopen/verifier.rs

@@ -36,7 +36,7 @@ where
     let x_2: ChallengeX2<_> = transcript.squeeze_challenge_scalar();
 
     let (commitment_map, point_sets) =
-        construct_intermediate_sets(queries).ok_or_else(|| Error::OpeningError)?;
+        construct_intermediate_sets(queries).ok_or(Error::OpeningError)?;
 
     // Compress the commitments and expected evaluations at x together.
     // using the challenge x_1