Rust 1.79 lints (#5927)

* max_value -> MAX

* remove unnecesary closures

* a couple more max_value -> MAX

* a couple more max_value -> MAX

* Revert "a couple more max_value -> MAX"

This reverts commit 807fe7cae9.

* unused spec field -> phantom data

* ignore some dead code warnings

* update kurtosis repo location

beacon_node/operation_pool/src/lib.rs

@@ -602,7 +602,7 @@ impl<E: EthSpec> OperationPool<E> {
                         })
             },
             |address_change| address_change.as_inner().clone(),
-            usize::max_value(),
+            usize::MAX,
         );
         changes.shuffle(&mut thread_rng());
         changes
@@ -1343,7 +1343,7 @@ mod release_tests {
         // Set of indices covered by previous attestations in `best_attestations`.
         let mut seen_indices = BTreeSet::<u64>::new();
         // Used for asserting that rewards are in decreasing order.
-        let mut prev_reward = u64::max_value();
+        let mut prev_reward = u64::MAX;
 
         let mut reward_cache = RewardCache::default();
         reward_cache.update(&state).unwrap();