contract/test-harness: minor cleanup

src/contract/test-harness/src/consensus_genesis_stake.rs

@@ -39,7 +39,7 @@ impl TestHarness {
         holder: Holder,
         amount: u64,
     ) -> Result<(Transaction, ConsensusGenesisStakeParamsV1)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (mint_pk, mint_zkbin) =
             self.proving_keys.get(&CONSENSUS_CONTRACT_ZKAS_MINT_NS_V1).unwrap();
         let tx_action_benchmark =
@@ -108,7 +108,7 @@ impl TestHarness {
         slot: u64,
         erroneous: usize,
     ) -> Result<()> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let tx_action_benchmark =
             self.tx_action_benchmarks.get_mut(&TxAction::ConsensusGenesisStake).unwrap();
         let timer = Instant::now();

src/contract/test-harness/src/consensus_proposal.rs

@@ -40,7 +40,7 @@ impl TestHarness {
         slot_checkpoint: SlotCheckpoint,
         staked_oc: ConsensusOwnCoin,
     ) -> Result<(Transaction, ConsensusProposalParamsV1, SecretKey, SecretKey)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (proposal_pk, proposal_zkbin) =
             self.proving_keys.get(&CONSENSUS_CONTRACT_ZKAS_PROPOSAL_NS_V1).unwrap();
         let tx_action_benchmark =
@@ -119,7 +119,7 @@ impl TestHarness {
         slot: u64,
         erroneous: usize,
     ) -> Result<()> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let tx_action_benchmark =
             self.tx_action_benchmarks.get_mut(&TxAction::ConsensusProposal).unwrap();
         let timer = Instant::now();

src/contract/test-harness/src/consensus_stake.rs

@@ -41,7 +41,7 @@ impl TestHarness {
         slot: u64,
         owncoin: OwnCoin,
     ) -> Result<(Transaction, ConsensusStakeParamsV1, SecretKey)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (mint_pk, mint_zkbin) =
             self.proving_keys.get(&CONSENSUS_CONTRACT_ZKAS_MINT_NS_V1).unwrap();
         let (burn_pk, burn_zkbin) = self.proving_keys.get(&MONEY_CONTRACT_ZKAS_BURN_NS_V1).unwrap();

src/contract/test-harness/src/consensus_unstake.rs

@@ -42,7 +42,7 @@ impl TestHarness {
         holder: Holder,
         staked_oc: ConsensusOwnCoin,
     ) -> Result<(Transaction, MoneyUnstakeParamsV1, SecretKey)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (burn_pk, burn_zkbin) =
             self.proving_keys.get(&CONSENSUS_CONTRACT_ZKAS_BURN_NS_V1).unwrap();
         let (mint_pk, mint_zkbin) = self.proving_keys.get(&MONEY_CONTRACT_ZKAS_MINT_NS_V1).unwrap();

src/contract/test-harness/src/consensus_unstake_request.rs

@@ -42,7 +42,7 @@ impl TestHarness {
         slot: u64,
         staked_oc: ConsensusOwnCoin,
     ) -> Result<(Transaction, ConsensusUnstakeReqParamsV1, SecretKey, SecretKey)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (burn_pk, burn_zkbin) =
             self.proving_keys.get(&CONSENSUS_CONTRACT_ZKAS_BURN_NS_V1).unwrap();
         let (mint_pk, mint_zkbin) =
@@ -132,7 +132,7 @@ impl TestHarness {
         slot: u64,
         erroneous: usize,
     ) -> Result<()> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let tx_action_benchmark =
             self.tx_action_benchmarks.get_mut(&TxAction::ConsensusUnstakeRequest).unwrap();
         let timer = Instant::now();

src/contract/test-harness/src/money_airdrop.rs

@@ -39,8 +39,8 @@ impl TestHarness {
         value: u64,
         holder: Holder,
     ) -> Result<(Transaction, MoneyTransferParamsV1)> {
-        let recipient = self.holders.get_mut(&holder).unwrap().keypair.public;
-        let faucet = self.holders.get_mut(&Holder::Faucet).unwrap();
+        let recipient = self.holders.get(&holder).unwrap().keypair.public;
+        let faucet = self.holders.get(&Holder::Faucet).unwrap();
         let (mint_pk, mint_zkbin) = self.proving_keys.get(&MONEY_CONTRACT_ZKAS_MINT_NS_V1).unwrap();
         let (burn_pk, burn_zkbin) = self.proving_keys.get(&MONEY_CONTRACT_ZKAS_BURN_NS_V1).unwrap();
         let tx_action_benchmark =

src/contract/test-harness/src/money_genesis_mint.rs

@@ -39,7 +39,7 @@ impl TestHarness {
         holder: Holder,
         amount: u64,
     ) -> Result<(Transaction, MoneyTokenMintParamsV1)> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let (mint_pk, mint_zkbin) = self.proving_keys.get(&MONEY_CONTRACT_ZKAS_MINT_NS_V1).unwrap();
         let tx_action_benchmark =
             self.tx_action_benchmarks.get_mut(&TxAction::MoneyGenesisMint).unwrap();
@@ -108,7 +108,7 @@ impl TestHarness {
         slot: u64,
         erroneous: usize,
     ) -> Result<()> {
-        let wallet = self.holders.get_mut(&holder).unwrap();
+        let wallet = self.holders.get(&holder).unwrap();
         let tx_action_benchmark =
             self.tx_action_benchmarks.get_mut(&TxAction::MoneyGenesisMint).unwrap();
         let timer = Instant::now();

src/contract/test-harness/src/money_token.rs

@@ -41,8 +41,8 @@ impl TestHarness {
         holder: Holder,
         recipient: Holder,
     ) -> Result<(Transaction, MoneyTokenMintParamsV1)> {
-        let rcpt = self.holders.get_mut(&recipient).unwrap().keypair.public;
-        let mint_authority = self.holders.get_mut(&holder).unwrap().token_mint_authority;
+        let rcpt = self.holders.get(&recipient).unwrap().keypair.public;
+        let mint_authority = self.holders.get(&holder).unwrap().token_mint_authority;
         let (mint_pk, mint_zkbin) =
             self.proving_keys.get(&MONEY_CONTRACT_ZKAS_TOKEN_MINT_NS_V1).unwrap();
         let tx_action_benchmark =
@@ -106,7 +106,7 @@ impl TestHarness {
         &mut self,
         holder: Holder,
     ) -> Result<(Transaction, MoneyTokenFreezeParamsV1)> {
-        let mint_authority = self.holders.get_mut(&holder).unwrap().token_mint_authority;
+        let mint_authority = self.holders.get(&holder).unwrap().token_mint_authority;
         let (frz_pk, frz_zkbin) =
             self.proving_keys.get(&MONEY_CONTRACT_ZKAS_TOKEN_FRZ_NS_V1).unwrap();
         let tx_action_benchmark =