Uses NoHashHasher in AccountsDb::dirty_stores (#4324)

accounts-db/src/accounts_db.rs

@@ -1574,7 +1574,7 @@ pub struct AccountsDb {
     /// Set of stores which are recently rooted or had accounts removed
     /// such that potentially a 0-lamport account update could be present which
     /// means we can remove the account from the index entirely.
-    dirty_stores: DashMap<Slot, Arc<AccountStorageEntry>>,
+    dirty_stores: DashMap<Slot, Arc<AccountStorageEntry>, BuildNoHashHasher<Slot>>,
 
     /// Zero-lamport accounts that are *not* purged during clean because they need to stay alive
     /// for incremental snapshot support.