Remove old Aura Gesture Detection Pipeline.

ui/events/gestures/unified_gesture_detector_enabled.h

Index: ui/events/gestures/unified_gesture_detector_enabled.h
diff --git a/ui/events/gestures/unified_gesture_detector_enabled.h b/ui/events/gestures/unified_gesture_detector_enabled.h
deleted file mode 100644
index 18fdc26d8acce43741bc54aea0e59b3491696171..0000000000000000000000000000000000000000
--- a/ui/events/gestures/unified_gesture_detector_enabled.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2014 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_GESTURES_UNIFIED_GESTURE_DETECTOR_ENABLED_H_
-#define UI_EVENTS_GESTURES_UNIFIED_GESTURE_DETECTOR_ENABLED_H_
-
-#include "ui/events/events_export.h"
-
-namespace ui {
-
-// Returns true iff the unified gesture detector is enabled for Aura.
-EVENTS_EXPORT bool IsUnifiedGestureDetectorEnabled();
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_GESTURES_UNIFIED_GESTURE_DETECTOR_ENABLED_H_