style: rm mut fmt inconsistency

Author: juliaaschmidt

program/tests/vsa_add.rs

@@ -179,7 +179,7 @@ async fn success() {
 
 #[tokio::test]
 async fn fail_with_wrong_validator_list_account() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let wrong_validator_list = Keypair::new();
@@ -262,7 +262,7 @@ async fn fail_double_add() {
 
 #[tokio::test]
 async fn fail_wrong_staker() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let malicious = Keypair::new();
@@ -303,7 +303,7 @@ async fn fail_wrong_staker() {
 
 #[tokio::test]
 async fn fail_without_signature() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let accounts = vec![
@@ -357,7 +357,7 @@ async fn fail_without_signature() {
 
 #[tokio::test]
 async fn fail_with_wrong_stake_program_id() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let wrong_stake_program = Pubkey::new_unique();
@@ -409,7 +409,7 @@ async fn fail_with_wrong_stake_program_id() {
 
 #[tokio::test]
 async fn fail_with_wrong_system_program_id() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let wrong_system_program = Pubkey::new_unique();
@@ -728,7 +728,7 @@ async fn fail_with_not_enough_reserve_lamports() {
 
 #[tokio::test]
 async fn fail_with_wrong_reserve() {
-    let (mut banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
+    let (banks_client, payer, recent_blockhash, stake_pool_accounts, validator_stake) =
         setup(1).await;
 
     let wrong_reserve = Pubkey::new_unique();