Do not test, document or use a private API method

These methods are nodoc so we should not document them.

activerecord/lib/active_record/aggregations.rb

@@ -104,11 +104,6 @@ module ActiveRecord
     #   customer.address_city   = "Copenhagen"
     #   customer.address        # => Address.new("Hyancintvej", "Copenhagen")
     #
-    #   customer.address_street = "Vesterbrogade"
-    #   customer.address        # => Address.new("Hyancintvej", "Copenhagen")
-    #   customer.send(:clear_aggregation_cache)
-    #   customer.address        # => Address.new("Vesterbrogade", "Copenhagen")
-    #
     #   customer.address = Address.new("May Street", "Chicago")
     #   customer.address_street # => "May Street"
     #   customer.address_city   # => "Chicago"

activerecord/test/cases/associations_test.rb

@@ -43,28 +43,6 @@ class AssociationsTest < ActiveRecord::TestCase
     assert_equal favs, fav2
   end
 
-  def test_clear_association_cache_stored
-    firm = Firm.find(1)
-    assert_kind_of Firm, firm
-
-    firm.send(:clear_association_cache)
-    assert_equal Firm.find(1).clients.collect(&:name).sort, firm.clients.collect(&:name).sort
-  end
-
-  def test_clear_association_cache_new_record
-     firm            = Firm.new
-     client_stored   = Client.find(3)
-     client_new      = Client.new
-     client_new.name = "The Joneses"
-     clients         = [ client_stored, client_new ]
-
-     firm.clients    << clients
-     assert_equal clients.map(&:name).to_set, firm.clients.map(&:name).to_set
-
-     firm.send(:clear_association_cache)
-     assert_equal clients.map(&:name).to_set, firm.clients.map(&:name).to_set
-  end
-
   def test_loading_the_association_target_should_keep_child_records_marked_for_destruction
     ship = Ship.create!(:name => "The good ship Dollypop")
     part = ship.parts.create!(:name => "Mast")

activerecord/test/cases/base_test.rb

@@ -812,7 +812,6 @@ class BasicsTest < ActiveRecord::TestCase
   def test_dup_does_not_copy_associations
     author = authors(:david)
     assert_not_equal [], author.posts
-    author.send(:clear_association_cache)
 
     author_dup = author.dup
     assert_equal [], author_dup.posts