remove the vbng service's default url
remove the vbng service's default url

zdw/xos,open-cloud/xos,opencord/xos,zdw/xos,cboling/xos,zdw/xos,cboling/xos,opencord/xos,open-cloud/xos,cboling/xos,open-cloud/xos,opencord/xos,cboling/xos,cboling/xos,zdw/xos