luci-mod-network: drop support for *adding* legacy bridges
The old way of defining bridge (L2) as part of interface (L3) is
deprecated. Don't support *adding* interfaces like that.
Support for *editing* legacy bridges is kept for now for compatibility
with existing legacy setups.
Signed-off-by:
Rafał Miłecki <rafal@milecki.pl>
parent
94d35bba