stop requiring railtie

Author: thompson-tomo

instrumentation/rails/test/railtie/dummy/config/application.rb

@@ -15,7 +15,6 @@
 require 'action_view/railtie'
 # require "action_cable/engine"
 # require "sprockets/railtie"
-require 'rails/test_unit/railtie'
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.