How can I turn off a function on the bottom of my home page?

[AC Question]

I just purchased a Nextbook Ares 8-lollipop. On the bottom of the home screen, there are three virtual buttons. The center one is a circle that takes you immediately to Google, from every screen, no matter where you are , or what you are doing. It is a swipe type function. How can I turn if off, or at least move it?