Correct clippy warnings

Currently intended to be done with:
cargo clippy --features "recommended merlin batch serialize experimental 
ed25519 ristretto p256 secp256k1 multisig" -- -A clippy::type_complexity 
-A dead_code

crypto/frost/src/tests/mod.rs

@@ -116,7 +116,7 @@ pub fn algorithm_machines<R: RngCore, C: Curve, A: Algorithm<C>>(
   keys
     .iter()
     .filter_map(|(i, keys)| {
-      if included.contains(&i) {
+      if included.contains(i) {
         Some((
           *i,
           AlgorithmMachine::new(algorithm.clone(), keys.clone(), &included.clone()).unwrap(),

crypto/frost/src/tests/schnorr.rs

@@ -59,7 +59,7 @@ pub(crate) fn core_batch_verify<R: RngCore + CryptoRng, C: Curve>(rng: &mut R) {
     if let Err(blame) = schnorr::batch_verify(rng, &triplets) {
       assert_eq!(blame, 2);
     } else {
-      assert!(false);
+      panic!("batch verification considered a malleated signature valid");
     }
   }
 
@@ -70,7 +70,7 @@ pub(crate) fn core_batch_verify<R: RngCore + CryptoRng, C: Curve>(rng: &mut R) {
     if let Err(blame) = schnorr::batch_verify(rng, &triplets) {
       assert_eq!(blame, u16::try_from(i + 1).unwrap());
     } else {
-      assert!(false);
+      panic!("batch verification considered an invalid signature valid");
     }
   }
 }
@@ -80,7 +80,7 @@ fn sign_core<R: RngCore + CryptoRng, C: Curve>(
   group_key: C::G,
   keys: &HashMap<u16, Arc<FrostKeys<C>>>,
 ) {
-  const MESSAGE: &'static [u8] = b"Hello, World!";
+  const MESSAGE: &[u8] = b"Hello, World!";
 
   let machines = algorithm_machines(rng, Schnorr::<C, TestHram<C>>::new(), keys);
   let sig = sign_test(&mut *rng, machines, MESSAGE);

crypto/frost/src/tests/vectors.rs

@@ -87,7 +87,7 @@ pub fn test_with_vectors<R: RngCore + CryptoRng, C: Curve, H: Hram<C>>(
       AlgorithmMachine::new(
         Schnorr::<C, H>::new(),
         Arc::new(keys[i].clone()),
-        vectors.included.clone(),
+        &vectors.included.to_vec().clone(),
       )
       .unwrap(),
     ));