Delete stub src/transaction.rs

tests/multinode.rs

@@ -27,11 +27,11 @@ use solana::service::Service;
 use solana::signature::{Keypair, KeypairUtil};
 use solana::system_transaction::SystemTransaction;
 use solana::thin_client::{retry_get_balance, ThinClient};
-use solana::transaction::Transaction;
 use solana::window::default_window;
 use solana_sdk::hash::Hash;
 use solana_sdk::pubkey::Pubkey;
 use solana_sdk::timing::{duration_as_ms, duration_as_s};
+use solana_sdk::transaction::Transaction;
 use std::collections::{HashSet, VecDeque};
 use std::env;
 use std::fs::remove_dir_all;