Remove default Facebook comment box

Hi, as the title , i want to remove dafault facebook comment box in my site: http://ecgame.vn/shop/dien-thoai/nokia-lumia-925/

i added shortcode to reviews tab, i dont want show facebook comment box in Description tab, how i can do this? . Thanks!!!

http://ww.wp.xz.cn/plugins/facebook-comments-plugin/