remove useless dispatch

Author: poor-circle

include/ylt/coro_io/coro_io.hpp

@@ -230,19 +230,16 @@ inline async_simple::coro::Lazy<ret_type> async_io(IO_func io_func,
           auto lock = lock_ref;
           hasCanceled = !slot->emplace(
               async_simple::SignalType::Terminate,
-              [&obj, weak_lock = std::weak_ptr{lock}, executor = executor](
+              [&obj, weak_lock = std::weak_ptr{lock}](
                   async_simple::SignalType signalType,
                   async_simple::Signal *signal) {
-                asio::dispatch(
-                    executor, [&obj, weak_lock = std::move(weak_lock)]() {
-                      if (auto ptr = weak_lock.lock(); ptr) {
-                        bool expected = false;
-                        if (!ptr->compare_exchange_strong(
-                                expected, true, std::memory_order_release)) {
-                          detail::cancel(obj);
-                        }
-                      }
-                    });
+                  if (auto ptr = weak_lock.lock(); ptr) {
+                    bool expected = false;
+                    if (!ptr->compare_exchange_strong(
+                            expected, true, std::memory_order_release)) {
+                      detail::cancel(obj);
+                    }
+                  }
               });
           if (hasCanceled) {
             asio::dispatch(executor, [handler]() {