Remove the pipe class.

src/ftxui/component/pipe.hpp

@@ -1,30 +0,0 @@
-#ifndef FTXUI_COMPONENTS_TASK_QUEUE_H_
-#define FTXUI_COMPONENTS_TASK_QUEUE_H_
-
-#include <atomic>
-#include <condition_variable>
-#include <functional>
-#include <memory>
-#include <mutex>
-#include <queue>
-
-
-
-template <class T>
-class TaskQueue {
- public:
-  void Post(T task);
-  void Close();
-  bool Take(T& task);
- private:
-  std::unique_lock<std::mutex> lock(events_queue_mutex);
-  events_queue.push(event);
-  events_queue_cv.notify_one();
-
-  std::condition_variable events_queue_cv;
-  std::mutex events_queue_mutex;
-  std::queue<Event> events_queue;
-  std::atomic<bool> quit_ = false;
-};
-
-#endif  // FTXUI_COMPONENTS_TASK_QUEUE_H_