Hi Michael,
I have meant that you can remove the bridge interface as you do not need it for bonding. You can configure the ip address directly on the bond0 interface. Try to configure your server with bonding according to this (refer to the second part of the article): http://www.unixmen.com/linux-basics-create-network-bonding-on-centos-76-5/
It is more clearer than the first link that I have gave you.
Thank you,
Daniel Friedman
Trixton LTD.