Remove dangling dtu_auth

config/initializers/dtu_auth.rb

-require 'dtu_auth'
 require 'dtu_auth2'
 
 raise "dtu_data must be configured.  Mostly likely in config/application.rb. " unless Rails.configuration.respond_to? 'dtu_data' and Rails.configuration.dtu_data.has_key? :root_path