Investigate removal of redis-rails gem
Rails 5.2 includes a Redis cache store so we may not need redis-rails
anymore.
https://github.com/redis-store/redis-rails#a-quick-note-about-rails-52
Rails 5.2 includes a Redis cache store so we may not need redis-rails
anymore.
https://github.com/redis-store/redis-rails#a-quick-note-about-rails-52