Those are L2 options that are not part of interfaces (L3), should not be
set there and don't work. Setting MAC and MTU should be done at device
layer (config device) and is supported for basic types already.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
The introduction of network device configuration support also implemented
all common, protocol-independent interface options directly in the
interface config view, so drop the redundant option definitions.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
