Ruby on rails apis_and_building_your_own.md: Remove dead link

Addresses issue #29105

ruby_on_rails/apis/apis_and_building_your_own.md

@@ -218,6 +218,5 @@ This section contains helpful links to related content. It isn't required, so co
 - Watch this free [Railscast on securing your API](http://railscasts.com/episodes/352-securing-an-api)
 - Watch this free [Railscast on versioning your API](http://railscasts.com/episodes/350-rest-api-versioning)
 - [GoRails #162 Our First API](https://www.gorails.com/episodes/our-first-api)
-- [Building a public-facing API using view templates instead of `#to_json`](http://blog.codepath.com/2011/05/16/if-youre-using-to_json-youre-doing-it-wrong/)
 - [`to_json` or `as_json` by Jonathan Julian](http://jonathanjulian.com/2010/04/rails-to_json-or-as_json/) gives specific examples of digging into the `as_json` method.
 - [Service Oriented Architecture Explained](https://www.youtube.com/watch?v=7s_S5Hkm7z0)