Revert of Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.h

Index: ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.h
diff --git a/ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.h b/ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.h
deleted file mode 100644
index 7a3c0afcfaa0550e2242cb9f59d55dcf973d1282..0000000000000000000000000000000000000000
--- a/ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.h
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_SINGLE_POSITION_TOUCH_NOISE_FILTER_H_
-#define UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_SINGLE_POSITION_TOUCH_NOISE_FILTER_H_
-
-#include "base/macros.h"
-#include "base/time/time.h"
-#include "ui/events/ozone/evdev/touch_noise/touch_noise_filter.h"
-
-namespace ui {
-
-class SinglePositionTouchNoiseFilter : public TouchNoiseFilter {
- public:
-  SinglePositionTouchNoiseFilter();
-  ~SinglePositionTouchNoiseFilter() override {}
-
-  // TouchNoiseFilter:
-  void Filter(const std::vector<InProgressTouchEvdev>& touches,
-              base::TimeDelta time,
-              std::bitset<kNumTouchEvdevSlots>* slots_with_noise) override;
-
- private:
-  struct TrackedTouch {
-    TrackedTouch();
-    ~TrackedTouch();
-
-    bool valid;
-    size_t slot;
-    int x;
-    int y;
-    base::TimeDelta begin;
-    base::TimeDelta end;
-  };
-
-  void StopTrackingTouch(size_t index);
-  void TrackTouch(const InProgressTouchEvdev& touch,
-                  base::TimeDelta time);
-
-  // A mapping of slot to tracked touch index in |tracked_touches_|.
-  size_t tracked_slots_[kNumTouchEvdevSlots];
-
-  // A circular buffer of tracked touches
-  // [|tracked_touches_start_|, |tracked_touches_end_|).
-  static const int kNumTrackedTouches = 100;
-  TrackedTouch tracked_touches_[kNumTrackedTouches];
-
-  size_t tracked_touches_start_;
-  size_t tracked_touches_end_;
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_SINGLE_POSITION_TOUCH_NOISE_FILTER_H_