Revert "CA-105789: Ensure the bridge has the correct MAC on first boot"

This patch has caused problems with some bonding tests.

This reverts commit 7d28295e5542ea235eb6c73ee060a4b17cfc4d55.

Signed-off-by: John Else <john.else@citrix.com>
Merge pull request #1857 from johnelse/ca-105789-revert

Revert "CA-105789: Ensure the bridge has the correct MAC on first boot"