Revert "Do not manage Docker bridge interfaces"

The docker bridges are no special -- just regular externally created
bridges.

This reverts commit 0ce73275.
12 jobs for lr/revert-no-manage-docker in 36 minutes and 35 seconds (queued for 45 seconds)
latest
Status Job ID Name Coverage
  Test
passed #308096
allowed to fail
checkpatch

00:01:10

passed #308103
t_debian:9

00:19:16

passed #308105
t_debian:sid

00:21:01

manual #308104
allowed to fail manual
t_debian:testing
passed #308097
t_fedora:28

00:31:19

passed #308098
t_fedora:29

00:33:55

passed #308099
t_fedora:30

00:24:10

manual #308100
allowed to fail manual
t_fedora:rawhide
passed #308101
t_ubuntu:16.04

00:19:09

passed #308102
t_ubuntu:18.04

00:19:36

 
  External
passed NetworkManager test verification

passed NetworkManager test verification

05:46:54