1.2.0-20171115-amd64-vrrp6

vyos@vyos:~$ show configuration 
interfaces {
    bridge br0 {
        aging 300
        hello-time 2
        max-age 20
        priority 32768
        stp false
    }
    ethernet eth0 {
        address dhcp
        duplex auto
        smp-affinity auto
        speed auto
    }
    ethernet eth1 {
        bridge-group {
            bridge br0
        }
        duplex auto
        smp-affinity auto
        speed auto
    }
    loopback lo {
    }
}
service {
    ssh {
        port 22
    }
}
system {
    config-management {
        commit-revisions 20
    }
    console {
        device ttyS0 {
            speed 9600
        }
    }
    host-name vyos
    login {
        user vyos {
            authentication {
                encrypted-password ****************
                plaintext-password ****************
            }
            level admin
        }
    }
    ntp {
        server 0.pool.ntp.org {
        }
        server 1.pool.ntp.org {
        }
        server 2.pool.ntp.org {
        }
    }
    syslog {
        global {
            facility all {
                level notice
            }
            facility protocols {
                level debug
            }
        }
    }
    time-zone UTC
}

vyos@vyos:~$ configure

vyos@vyos# delete interfaces ethernet eth1 bridge-group bridge br0 
[edit]
vyos@vyos# commit; save; exit
[ interfaces ethernet eth1 bridge-group ]
Removing interface eth1 from bridge br0

Saving configuration to '/config/config.boot'...
Done
exit

vyos@vyos:~$ show configuration 
interfaces {
    bridge br0 {
        aging 300
        hello-time 2
        max-age 20
        priority 32768
        stp false
    }
    ethernet eth0 {
        address dhcp
        duplex auto
        smp-affinity auto
        speed auto
    }
    ethernet eth1 {
        bridge-group {
        }
        duplex auto
        smp-affinity auto
        speed auto
    }
    loopback lo {
    }
}
service {
    ssh {
        port 22
    }
}
system {
    config-management {
        commit-revisions 20
    }
    console {
        device ttyS0 {
            speed 9600
        }
    }
    host-name vyos
    login {
        user vyos {
            authentication {
                encrypted-password ****************
                plaintext-password ****************
            }
            level admin
        }
    }
    ntp {
        server 0.pool.ntp.org {
        }
        server 1.pool.ntp.org {
        }
        server 2.pool.ntp.org {
        }
    }
    syslog {
        global {
            facility all {
                level notice
            }
            facility protocols {
                level debug
            }
        }
    }
    time-zone UTC
}

vyos@vyos:~$ show version 
Version:          VyOS 999.201711150853
Built by:         dmbaturin@jessiedevel
Built on:         Wed 15 Nov 2017 08:53 UTC
Build ID:         28e610f9-397c-406b-b74a-9111a71aa74d

Architecture:     x86_64
Boot via:         installed image
System type:      KVM guest

Hardware vendor:  QEMU
Hardware model:   Standard PC (i440FX + PIIX, 1996)
Hardware S/N:     
Hardware UUID:    4CF775F2-CC17-4DBF-8DAD-228015FFD802

Copyright:        VyOS maintainers and contributors