ui: Remove unneeded RegisterNatives() call on Android

ui/base/touch/touch_device_android.cc

 // Copyright (c) 2013 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/base/touch/touch_device.h"
 
 #include "base/android/context_utils.h"
 #include "base/logging.h"
 #include "jni/TouchDevice_jni.h"
 
@@ skipping 39 matching lines @@
 HoverType GetPrimaryHoverType() {
   int available_hover_types = GetAvailableHoverTypes();
   if (available_hover_types & HOVER_TYPE_ON_DEMAND)
     return HOVER_TYPE_ON_DEMAND;
   if (available_hover_types & HOVER_TYPE_HOVER)
     return HOVER_TYPE_HOVER;
   DCHECK_EQ(available_hover_types, HOVER_TYPE_NONE);
   return HOVER_TYPE_NONE;
 }
 
-bool RegisterTouchDeviceAndroid(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
 }  // namespace ui