Remove the variable mrp_ring_state from switchdev_attr because is not
used anywhere.
The ring state is set using SWITCHDEV_OBJ_ID_RING_STATE_MRP.
Fixes: c284b5459008 ("switchdev: mrp: Extend switchdev API to offload MRP")
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 #if IS_ENABLED(CONFIG_BRIDGE_MRP)
                u8 mrp_port_state;                      /* MRP_PORT_STATE */
                u8 mrp_port_role;                       /* MRP_PORT_ROLE */
-               u8 mrp_ring_state;                      /* MRP_RING_STATE */
 #endif
        } u;
 };