chore: remove redundant imports

actix-web-httpauth/src/headers/authorization/errors.rs

@@ -1,4 +1,4 @@
-use std::{convert::From, error::Error, fmt, str};
+use std::{error::Error, fmt, str};
 
 use actix_web::http::header;
 

actix-web-httpauth/src/middleware.rs

@@ -243,7 +243,6 @@ where
 mod tests {
     use actix_service::into_service;
     use actix_web::{
-        dev::Service,
         error::{self, ErrorForbidden},
         http::StatusCode,
         test::TestRequest,