Remove fee arg from system_transaction::* (#4346)

automerge

core/tests/rpc.rs

@@ -38,7 +38,7 @@ fn test_rpc_send_tx() {
     let blockhash: Hash = json["result"][0].as_str().unwrap().parse().unwrap();
 
     info!("blockhash: {:?}", blockhash);
-    let tx = system_transaction::transfer(&alice, &bob_pubkey, 20, blockhash, 0);
+    let tx = system_transaction::transfer(&alice, &bob_pubkey, 20, blockhash);
     let serial_tx = serialize(&tx).unwrap();
 
     let client = reqwest::Client::new();

core/tests/tvu.rs

@@ -154,7 +154,6 @@ fn test_replay() {
                 &bob_keypair.pubkey(),
                 transfer_amount,
                 blockhash,
-                0,
             );
             let entry_tick1 = next_entry_mut(&mut cur_hash, i + 1, vec![]);
             let entry1 = next_entry_mut(&mut cur_hash, i + num_transfers, vec![tx0]);