remove unnecessary error module and fix token-client dependency

Author: samkim-crypto

Cargo.lock

@@ -27,6 +27,7 @@ spl-record = { version = "0.2.1", path = "../../record/program", features = ["no
 spl-token = { version = "6.0", path = "../program", features = [
   "no-entrypoint",
 ] }
+spl-token-confidential-transfer-proof-extraction = { version = "0.1.0", path = "../confidential-transfer/proof-extraction" }
 spl-token-confidential-transfer-proof-generation = { version = "0.1.0", path = "../confidential-transfer/proof-generation" }
 spl-token-2022 = { version = "5.0.2", path = "../program-2022" }
 spl-token-group-interface = { version = "0.4.2", path = "../../token-group/interface" }

token/client/Cargo.toml

@@ -47,7 +47,6 @@ use {
             BaseStateWithExtensions, Extension, ExtensionType, StateWithExtensionsOwned,
         },
         instruction, offchain,
-        proof::{zk_proof_type_to_instruction, ProofData, ProofLocation},
         solana_zk_sdk::{
             encryption::{
                 auth_encryption::AeKey,
@@ -63,6 +62,9 @@ use {
         },
         state::{Account, AccountState, Mint, Multisig},
     },
+    spl_token_confidential_transfer_proof_extraction::{
+        zk_proof_type_to_instruction, ProofData, ProofLocation,
+    },
     spl_token_confidential_transfer_proof_generation::{
         transfer::TransferProofData, transfer_with_fee::TransferWithFeeProofData,
         withdraw::WithdrawProofData,