cleanup

esphome/core/scheduler.cpp

@@ -386,7 +386,7 @@ void HOT Scheduler::process_to_add() {
 void HOT Scheduler::cleanup_() {
   // Fast path: if nothing to remove, just return
   // Reading to_remove_ without lock is safe because:
-  // 1. It's volatile, ensuring we read the latest value
+  // 1. We only call this from the main thread during call()
   // 2. If it's 0, there's definitely nothing to cleanup
   // 3. If it becomes non-zero after we check, cleanup will happen next time
   if (this->to_remove_ == 0)