Remove unused file

include/ftxui/component/event_input_listener.hpp

@@ -1,55 +0,0 @@
-#ifndef FTXUI_COMPONENT_EVENT_INPUT_LISTENER_HPP
-#define FTXUI_COMPONENT_EVENT_INPUT_LISTENER_HPP
-
-#include <atomic>
-#include <functional>
-#include <thread>
-
-#include "event.hpp"
-
-#ifdef WIN32
-  #include <condition_variable>
-  #include <deque>
-  #include <mutex>
-#endif
-
-namespace ftxui {
-
-// Receives input events from the OS and turns them into
-// Event objects and sends to a consumer
-//
-// On NIX systems:
-//   - uses SIGWINCH for resize
-//   - uses getchar() for keypresses
-//
-// On Windows systems:
-//   - Uses ReadConsoleInput for resize and keypresses
-class EventInputListener {
- public:
-  EventInputListener(std::function<void(Event)> consumer);
-  ~EventInputListener();
-
-  void stop();
-
- private:
-  char readchar();
-  void readchar_thread_func(std::function<void(Event)> consumer);
-
-  std::atomic<bool> quit_{false};
-  std::thread readchar_thread_;
-#ifndef _WIN32
-  using signal_handler_t = void (*)(int);
-  signal_handler_t old_sigwinch_handler_;
-#else
-  void input_thread_func(std::function<void(Event)> consumer);
-
-  std::mutex input_queue_mutex_;
-  std::condition_variable input_queue_condvar_;
-  std::deque<char> input_queue_;
-  std::thread input_event_thread_;
-#endif
-};
-
-}  // namespace ftxui
-
-#endif /* end of include guard: FTXUI_COMPONENT_EVENT_INPUT_LISTENER_HPP */