Hide the arrow "->" button in the url bar (easy to tap by accident)

When you start typing an URL, an arrow will be displayed to indicate that you can touch/click it to go to the URL. It is nice on desktop, but on phones where we have small width, it makes editing the URL harder as you can touch it by accident when trying to fix a typo in the URL. I think people are used to pressing the return key on the virtual keyboard after editing the URL, so this can safely be hidden for the mobile config.