Not needed in Rails 3

config/initializers/new_rails_defaults.rb

@@ -1,19 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# These settings change the behavior of Rails 2 apps and will be defaults
-# for Rails 3. You can remove this initializer when Rails 3 is released.
-
-if defined?(ActiveRecord)
-  # Include Active Record class name as root for JSON serialized output.
-  ActiveRecord::Base.include_root_in_json = true
-
-  # Store the full class name (including module namespace) in STI type column.
-  ActiveRecord::Base.store_full_sti_class = true
-end
-
-# Use ISO 8601 format for JSON serialized times and dates.
-ActiveSupport.use_standard_json_time_format = true
-
-# Don't escape HTML entities in JSON, leave that for the #json_escape helper.
-# if you're including raw json in an HTML page.
-ActiveSupport.escape_html_entities_in_json = false