This is no longer needed and was fixed in rails itself

Revert "Rails 4 compatibility: require action_view"

This reverts commit 6fc528253c453a133bbad8eb72a8e748926e7cc7.
Merge pull request #147 from strzalek/do-not-require-av-railtie

Do not require action_view/railtie, this has been fixed in Rails.