Delete AS::Dependencies.hook!

actionpack/test/abstract_unit.rb

@@ -46,8 +46,6 @@ def self.require_helpers(helpers_dirs)
 ActionPackTestSuiteUtils.require_helpers("#{__dir__}/fixtures/helpers")
 ActionPackTestSuiteUtils.require_helpers("#{__dir__}/fixtures/alternate_helpers")
 
-ActiveSupport::Dependencies.hook!
-
 Thread.abort_on_exception = true
 
 # Show backtraces for deprecated behavior for quicker cleanup.

activesupport/lib/active_support/dependencies.rb

@@ -293,11 +293,6 @@ def require(file)
         end
     end
 
-    def hook!
-      Loadable.include_into(Object)
-      ModuleConstMissing.include_into(Module)
-    end
-
     def unhook!
       ModuleConstMissing.exclude_from(Module)
       Loadable.exclude_from(Object)
@@ -697,5 +692,3 @@ def real_mod_name(mod)
       end
   end
 end
-
-ActiveSupport::Dependencies.hook!

activesupport/test/dependencies_test.rb

@@ -98,22 +98,6 @@ def test_new_constants_in_with_illegal_module_name_raises_correct_error
       ActiveSupport::Dependencies.new_constants_in("Illegal-Name") { }
     end
   end
-
-  def test_hook_called_multiple_times
-    assert_nothing_raised { ActiveSupport::Dependencies.hook! }
-  end
-
-  def test_load_and_require_stay_private
-    assert_includes Object.private_methods, :load
-    assert_includes Object.private_methods, :require
-
-    ActiveSupport::Dependencies.unhook!
-
-    assert_includes Object.private_methods, :load
-    assert_includes Object.private_methods, :require
-  ensure
-    ActiveSupport::Dependencies.hook!
-  end
 end
 
 class RequireDependencyTest < ActiveSupport::TestCase