Remove unnecessary get_cancellation_slot().clear() calls

Summary: related to T13706

Reviewers: ivica

Reviewed By: ivica

Subscribers: miljen, iljazovic

Differential Revision: https://repo.mireo.local/D27894

include/async_mqtt5/impl/connect_op.hpp

@@ -381,8 +381,6 @@ public:
 
 private:
 	void complete(error_code ec) {
-		get_cancellation_slot().clear();
-
 		std::move(_handler)(ec);
 	}
 

include/async_mqtt5/impl/endpoints.hpp

@@ -102,14 +102,10 @@ public:
 
 private:
 	void complete(error_code ec, epoints eps, authority_path ap) {
-		get_cancellation_slot().clear();
-
 		std::move(_handler)(ec, std::move(eps), std::move(ap));
 	}
 
 	void complete_post(error_code ec, epoints eps, authority_path ap) {
-		get_cancellation_slot().clear();
-
 		asio::post(
 			_owner.get_executor(),
 			asio::prepend(

include/async_mqtt5/impl/ping_op.hpp

@@ -67,8 +67,6 @@ public:
 	}
 
 	void operator()(on_timer, error_code) {
-		get_cancellation_slot().clear();
-
 		if (
 			_cancellation_state.cancelled() == asio::cancellation_type::terminal ||
 			!_svc_ptr->is_open()
@@ -95,8 +93,6 @@ public:
 	}
 
 	void operator()(on_pingreq, error_code ec) {
-		get_cancellation_slot().clear();
-
 		if (
 			_cancellation_state.cancelled() == asio::cancellation_type::terminal ||
 			ec == asio::error::no_recovery

include/async_mqtt5/impl/reconnect_op.hpp

@@ -184,10 +184,7 @@ public:
 
 private:
 	void complete(error_code ec) {
-		get_cancellation_slot().clear();
-
 		_owner._conn_mtx.unlock();
-
 		std::move(_handler)(ec);
 	}
 };

include/async_mqtt5/impl/sentry_op.hpp

@@ -61,8 +61,6 @@ public:
 	}
 
 	void operator()(on_timer, error_code ec) {
-		get_cancellation_slot().clear();
-
 		if (ec == asio::error::operation_aborted || !_svc_ptr->is_open())
 			return;
 
@@ -81,8 +79,6 @@ public:
 	}
 
 	void operator()(on_disconnect, error_code ec) {
-		get_cancellation_slot().clear();
-
 		if (!ec)
 			perform();
 	}