Removed unused add/remove error-event code.

src/input/input_event.cc

@@ -13,7 +13,6 @@ void
 InputEvent::insert() {
   torrent::this_thread::poll()->open(this);
   torrent::this_thread::poll()->insert_read(this);
-  torrent::this_thread::poll()->insert_error(this);
 }
 
 void

src/input/input_event.h

@@ -11,7 +11,7 @@ class InputEvent : public torrent::Event {
 public:
   typedef std::function<void (int)> slot_int;
 
-  InputEvent(int fd) { m_fileDesc = fd; }
+  InputEvent(int fd) { set_file_descriptor(fd); }
 
   const char*         type_name() const override { return "input"; }