Remove unused base/threading/worker_pool.h includes.

ui/events/ozone/evdev/input_device_factory_evdev.cc

 // 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.
 
 #include "ui/events/ozone/evdev/input_device_factory_evdev.h"
 
 #include <fcntl.h>
 #include <linux/input.h>
 #include <stddef.h>
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
-#include "base/threading/worker_pool.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/events/devices/device_data_manager.h"
 #include "ui/events/devices/device_util_linux.h"
 #include "ui/events/ozone/evdev/device_event_dispatcher_evdev.h"
 #include "ui/events/ozone/evdev/event_converter_evdev_impl.h"
 #include "ui/events/ozone/evdev/event_device_info.h"
 #include "ui/events/ozone/evdev/tablet_event_converter_evdev.h"
 #include "ui/events/ozone/evdev/touch_event_converter_evdev.h"
 
@@ skipping 447 matching lines @@
   if (enabled == palm_suppression_enabled_)
     return;
   palm_suppression_enabled_ = enabled;
 
   for (const auto& it : converters_) {
     it.second->SetEnabled(IsDeviceEnabled(it.second.get()));
   }
 }
 
 }  // namespace ui