Move transaction sanitization earlier in the pipeline (#18655)

* Move transaction sanitization earlier in the pipeline

* Renamed HashedTransaction to SanitizedTransaction

* Implement deref for sanitized transaction

* bring back process_transactions test method

* Use sanitized transactions for cost model calculation

runtime/benches/accounts.rs

@@ -41,14 +41,6 @@ fn deposit_many(bank: &Bank, pubkeys: &mut Vec<Pubkey>, num: usize) -> Result<()
     Ok(())
 }
 
-#[bench]
-fn bench_has_duplicates(bencher: &mut Bencher) {
-    bencher.iter(|| {
-        let data = test::black_box([1, 2, 3]);
-        assert!(!Accounts::has_duplicates(&data));
-    })
-}
-
 #[bench]
 fn test_accounts_create(bencher: &mut Bencher) {
     let (genesis_config, _) = create_genesis_config(10_000);