Revert "perf: improve config processing (#6091)"

This reverts commit bf189bb144.

src-tauri/src/core/timer.rs

@@ -25,7 +25,6 @@ pub struct TimerTask {
     pub last_run: i64, // Timestamp of last execution
 }
 
-// TODO 一个 Timer 负责轻量， 一个 Timer 负责订阅更新。当前会生产 N(订阅数量) + 1 个定时任务
 pub struct Timer {
     /// cron manager
     pub delay_timer: Arc<RwLock<DelayTimer>>,