Refactor: Sanitized transaction creation (#23558)

* Refactor: SanitizedTransaction::try_create optionally computes hash

* Refactor: Add SimpleAddressLoader

rpc/src/transaction_status_service.rs

@@ -225,7 +225,8 @@ pub(crate) mod tests {
             signature::{Keypair, Signature, Signer},
             system_transaction,
             transaction::{
-                DisabledAddressLoader, SanitizedTransaction, Transaction, VersionedTransaction,
+                MessageHash, SanitizedTransaction, SimpleAddressLoader, Transaction,
+                VersionedTransaction,
             },
         },
         solana_transaction_status::{
@@ -304,14 +305,13 @@ pub(crate) mod tests {
             Blockstore::open(&ledger_path).expect("Expected to be able to open database ledger");
         let blockstore = Arc::new(blockstore);
 
-        let message_hash = Hash::new_unique();
         let transaction = build_test_transaction_legacy();
         let transaction = VersionedTransaction::from(transaction);
         let transaction = SanitizedTransaction::try_create(
             transaction,
-            message_hash,
-            Some(true),
-            &DisabledAddressLoader,
+            MessageHash::Compute,
+            None,
+            SimpleAddressLoader::Disabled,
         )
         .unwrap();