CLI: Error message cleanup (#8804)

automerge

client/src/rpc_response.rs

@@ -1,6 +1,5 @@
-use crate::rpc_request::RpcError;
+use crate::{client_error, rpc_request::RpcError};
 use bincode::serialize;
-use jsonrpc_core::Result as JsonResult;
 use solana_sdk::{
     account::Account,
     clock::{Epoch, Slot},
@@ -9,10 +8,9 @@ use solana_sdk::{
     pubkey::Pubkey,
     transaction::{Result, Transaction},
 };
-use std::{collections::HashMap, io, net::SocketAddr, str::FromStr};
+use std::{collections::HashMap, net::SocketAddr, str::FromStr};
 
-pub type RpcResponseIn<T> = JsonResult<Response<T>>;
-pub type RpcResponse<T> = io::Result<Response<T>>;
+pub type RpcResult<T> = client_error::Result<Response<T>>;
 
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub struct RpcResponseContext {