Merge pull request #15305 from tgxworld/remove_unnecessary_require

Remove unnecessary require of Minitest.

actionpack/lib/action_dispatch/testing/integration.rb

@@ -3,7 +3,6 @@
 require 'active_support/core_ext/kernel/singleton_class'
 require 'active_support/core_ext/object/try'
 require 'rack/test'
-require 'minitest'
 
 module ActionDispatch
   module Integration #:nodoc:

activesupport/lib/active_support/test_case.rb

-gem 'minitest' # make sure we get the gem, not stdlib
-require 'minitest'
 require 'active_support/testing/tagged_logging'
 require 'active_support/testing/setup_and_teardown'
 require 'active_support/testing/assertions'

railties/test/generators/argv_scrubber_test.rb

-require 'active_support/test_case'
 require 'active_support/testing/autorun'
+require 'active_support/test_case'
 require 'rails/generators/rails/app/app_generator'
 require 'tempfile'
 

railties/test/generators/generator_test.rb

-require 'active_support/test_case'
 require 'active_support/testing/autorun'
+require 'active_support/test_case'
 require 'rails/generators/app_base'
 
 module Rails