Move SendTransactionService to solana_runtime (#10972)

runtime/src/lib.rs

@@ -21,6 +21,7 @@ pub mod message_processor;
 mod native_loader;
 pub mod nonce_utils;
 pub mod rent_collector;
+pub mod send_transaction_service;
 pub mod serde_snapshot;
 pub mod snapshot_package;
 pub mod snapshot_utils;