Use already-generated key set to populate dirty keys for clean (#14905)

Don't need to scan the stores again when we already found the key
set of updates per slot. Just insert it earlier.

(cherry picked from commit 65315fa4c2)

runtime/src/accounts_db.rs

@@ -4514,6 +4514,8 @@ impl AccountsDB {
             // is restored from the append-vec
             if !accounts_map.is_empty() {
                 let mut _reclaims: Vec<(u64, AccountInfo)> = vec![];
+                let dirty_keys = accounts_map.iter().map(|(pubkey, _info)| *pubkey).collect();
+                self.uncleaned_pubkeys.insert(*slot, dirty_keys);
                 for (pubkey, account_infos) in accounts_map.into_iter() {
                     for (_, (store_id, stored_account)) in account_infos.into_iter() {
                         let account_info = AccountInfo {
@@ -4538,7 +4540,6 @@ impl AccountsDB {
 
         // Need to add these last, otherwise older updates will be cleaned
         for slot in slots {
-            self.get_accounts_delta_hash(slot);
             self.accounts_index.add_root(slot, false);
         }