🗑️ Remove unused imports, macros and fields

- Drop unnecessary `axum::extract::{Path(State)}` imports in config.rs and registry.rs
- Mark unused field `_position_sec` with `#[allow(dead_code)]`
- Add missing attribute to dead code struct
- Remove unused macros `add_action_arg!`, etc. and related types (`PlayerReport`)

pmowebrenderer/src/config.rs

@@ -9,7 +9,6 @@ use async_trait::async_trait;
 #[cfg(feature = "pmoserver")]
 use axum::{
     Router,
-    extract::{Path, State},
     routing::{delete, get, post},
 };