Small code cleanup, getting ready to convert runner to a separate process

src/bin/wfd/main.rs

@@ -3,7 +3,7 @@ use actix_web::{error, middleware::Logger, web, App, HttpResponse, HttpServer, R
 use clap::Parser;
 use serde::{Deserialize, Serialize};
 
-use tokio::sync::{mpsc, oneshot};
+use tokio::sync::mpsc;
 use waterfall::prelude::*;
 
 #[derive(Serialize, Deserialize, Debug)]

src/bin/wfw/main.rs

@@ -4,14 +4,12 @@ use actix_cors::Cors;
 use actix_web::{error, middleware::Logger, web, App, HttpResponse, HttpServer, Responder};
 use clap::Parser;
 use serde::Serialize;
-use tokio::sync::{mpsc, oneshot};
+use tokio::sync::oneshot;
 
 use config::*;
 use waterfall::executors::agent_executor::TaskSubmission;
 use waterfall::prelude::*;
 
-type TaskDetails = serde_json::Value;
-
 #[derive(Serialize)]
 struct SimpleError {
     error: String,