Don't require 'active_support/all' in an individual test case!!!

and Git taught me that this crap was added via this commit... 68db6bc431

activemodel/test/cases/helper.rb

@@ -10,6 +10,7 @@
 
 require "active_support/testing/autorun"
 require "active_support/testing/method_call_assertions"
+require "active_support/core_ext/integer/time"
 
 class ActiveModel::TestCase < ActiveSupport::TestCase
   include ActiveSupport::Testing::MethodCallAssertions

activemodel/test/cases/validations/inclusion_validation_test.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "cases/helper"
-require "active_support/all"
 
 require "models/topic"
 require "models/person"