fix comment (#24254)

runtime/src/accounts_db.rs

@@ -4761,9 +4761,8 @@ impl AccountsDb {
             // Regardless of whether this slot was *just* flushed from the cache by the above
             // `flush_slot_cache()`, we should update the `max_flush_root`.
             // This is because some rooted slots may be flushed to storage *before* they are marked as root.
-            // This can occur for instance when:
-            // 1) The cache is overwhelmed, we we flushed some yet to be rooted frozen slots
-            // 2) Random evictions
+            // This can occur for instance when
+            //  the cache is overwhelmed, we flushed some yet to be rooted frozen slots
             // These slots may then *later* be marked as root, so we still need to handle updating the
             // `max_flush_root` in the accounts cache.
             self.accounts_cache.set_max_flush_root(root);