If I understand well, you probably just need to go in the company's profile view, and in the right hand column, search for related companies, and click the "x" in the top right corner of the related company box to remove the connection. Then simply add a new connection. See image below.
If I understand well, you probably just need to go in the company's profile view, and in the right hand column, search for related companies, and click the "x" in the top right corner of the related company box to remove the connection. Then simply add a new connection. See image below.