[FEATURE] Revert ember-routing-will-change-hooks
[FEATURE] Revert ember-routing-handlebars-action-with-key-code
[FEATURE] Revert ember-runtime-item-controller-inline-class.
[FEATURE] Revert event-dispatcher-can-disable-event-manager.
Merge pull request #9984 from rwjblue/revert-features

Revert features that are no longer in the proper direction.