Eliminate ui/ios

ui/ios/uikit_util.mm

-// 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/ios/uikit_util.h"
-
-#import <UIKit/UIKit.h>
-
-#include <cmath>
-
-namespace ui {
-
-CGFloat AlignValueToUpperPixel(CGFloat value) {
-  CGFloat scale = [[UIScreen mainScreen] scale];
-  return std::ceil(value * scale) / scale;
-}
-
-CGSize AlignSizeToUpperPixel(CGSize size) {
-  return CGSizeMake(AlignValueToUpperPixel(size.width),
-                    AlignValueToUpperPixel(size.height));
-}
-
-} // namespace ui