Revert "Removed assert on write_version ordering (solana-labs#29530)"

This reverts commit a6b492b.

runtime/src/accounts_db.rs

@@ -8483,8 +8483,14 @@ impl AccountsDb {
     ) -> GenerateIndexAccountsMap<'a> {
         let num_accounts = storage.approx_stored_count();
         let mut accounts_map = GenerateIndexAccountsMap::with_capacity(num_accounts);
+        let mut previous_write_version = None;
         storage.accounts.account_iter().for_each(|stored_account| {
             let this_version = stored_account.meta.write_version_obsolete;
+            if let Some(previous_write_version) = previous_write_version {
+                assert!(previous_write_version < this_version);
+            }
+            previous_write_version = Some(this_version);
+
             let pubkey = stored_account.pubkey();
             assert!(!self.is_filler_account(pubkey));
             match accounts_map.entry(*pubkey) {

runtime/src/accounts_db/geyser_plugin_utils.rs

@@ -88,10 +88,15 @@ impl AccountsDb {
 
         let mut accounts_to_stream: HashMap<Pubkey, StoredAccountMeta> = HashMap::default();
         let mut measure_filter = Measure::start("accountsdb-plugin-filtering-accounts");
+        let mut previous_write_version = None;
         let accounts = storage_entry.accounts.account_iter();
         let mut account_len = 0;
         accounts.for_each(|account| {
             account_len += 1;
+            if let Some(previous_write_version) = previous_write_version {
+                assert!(previous_write_version < account.meta.write_version_obsolete);
+            }
+            previous_write_version = Some(account.meta.write_version_obsolete);
             if notified_accounts.contains(&account.meta.pubkey) {
                 notify_stats.skipped_accounts += 1;
                 return;