event/Loop: simplify wake_event initializer

src/event/Loop.cxx

@@ -56,9 +56,6 @@ EventLoop::EventLoop(
 	 alive(!_thread.IsNull())
 #endif
 {
-#ifdef HAVE_THREADED_EVENT_LOOP
-	wake_event.Open(wake_fd.GetSocket());
-#endif
 }
 
 EventLoop::~EventLoop() noexcept

src/event/Loop.hxx

@@ -63,7 +63,7 @@ class EventLoop final
 {
 #ifdef HAVE_THREADED_EVENT_LOOP
 	WakeFD wake_fd;
-	SocketEvent wake_event{*this, BIND_THIS_METHOD(OnSocketReady)};
+	SocketEvent wake_event{*this, BIND_THIS_METHOD(OnSocketReady), wake_fd.GetSocket()};
 #endif
 
 	struct TimerCompare {