Remove useless InputDevice::name field

ui/events/devices/input_device.cc

 // 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.
 
 #include "ui/events/devices/input_device.h"
 
 #include <string>
 
 namespace ui {
 
 // static
 const unsigned int InputDevice::kInvalidId = 0;
 
 InputDevice::InputDevice()
     : id(kInvalidId), type(InputDeviceType::INPUT_DEVICE_UNKNOWN) {
 }
 
-InputDevice::InputDevice(unsigned int id,
-                         InputDeviceType type,
-                         const std::string& name)
-    : id(id), type(type), name(name) {
+InputDevice::InputDevice(unsigned int id, InputDeviceType type)
+    : id(id), type(type) {
 }
 
 InputDevice::~InputDevice() {
 }
 
 }  // namespace ui