I want to explain a little: You disabled, for example, the Instagram footer section however these sections is divided based on grid of boostrap. So if you want to remove white space, you need add custom css.  

I will give you a sample css code

 @media(min-width: 992px){ .footer2 .middle-footer .container .row div:last-child

{ width: 0 !important; }

.footer2 .middle-footer .container .row div

{ width: 25% !important; }

}