net: remove NICInfo.bootable field It is just set by net_set_boot_mask() and never used. The logic for rom loading changed a lot since this field was introduced. It is not needed anymore. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>