fix clippy

Author: ncitron

ethereum/consensus-core/src/consensus_core.rs

@@ -227,7 +227,12 @@ fn apply_update_no_quorum_check<S: ConsensusSpec>(
             store.optimistic_header = store.finalized_header.clone();
         }
 
-        if store.finalized_header.beacon().slot % S::slots_per_epoch() == 0 {
+        if store
+            .finalized_header
+            .beacon()
+            .slot
+            .is_multiple_of(S::slots_per_epoch())
+        {
             let checkpoint = store.finalized_header.beacon().tree_hash_root();
             return Some(checkpoint);
         }

ethereum/consensus-core/src/proof.rs

@@ -96,7 +96,7 @@ fn is_proof_valid<T: TreeHash>(
     let mut hasher = Sha256::new();
 
     for (i, node) in branch.iter().enumerate() {
-        if (index / 2usize.pow(i as u32)) % 2 != 0 {
+        if !(index / 2usize.pow(i as u32)).is_multiple_of(2) {
             hasher.update(node);
             hasher.update(derived_root);
         } else {