update feature removal schedule
update feature removal schedule

- Remove the netifrc related items since netifrc is now a separate
  package.

- State that the features we are planning to remove will be removed
  in version 1.0.

- Clarify the last entry; we are refering to start-stop-daemon options.

dwfreed/openrc,dwfreed/openrc,dwfreed/openrc,williamh/openrc,williamh/openrc,OpenRC/openrc,williamh/openrc,OpenRC/openrc,OpenRC/openrc