Fix clippy warnings (#1385)

## Issue Addressed

NA

## Proposed Changes

Fixes most clippy warnings and ignores the rest of them, see issue #1388.

beacon_node/network/src/sync/peer_sync_info.rs

@@ -102,12 +102,7 @@ impl PeerSyncInfo {
     /// than SLOT_IMPORT_TOLERANCE of our current head.
     /// 2) The peer has a greater finalized slot/epoch than our own.
     fn is_advanced_peer(&self, remote: &PeerSyncInfo) -> bool {
-        if remote.head_slot.sub(self.head_slot).as_usize() > SLOT_IMPORT_TOLERANCE
+        remote.head_slot.sub(self.head_slot).as_usize() > SLOT_IMPORT_TOLERANCE
             || self.finalized_epoch < remote.finalized_epoch
-        {
-            true
-        } else {
-            false
-        }
     }
 }