Reverts r3072 (#4302: error raised when sorting on an association not included as column).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3097 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/query_test.rb

@@ -202,15 +202,6 @@ class QueryTest < ActiveSupport::TestCase
     assert q.groupable_columns.detect {|c| c.is_a? QueryCustomFieldColumn}
   end
   
-  def test_include_options
-    q = Query.new
-    q.column_names = %w(subject tracker)
-    assert_equal [:tracker], q.include_options
-    
-    q.group_by = 'category'
-    assert_equal [:tracker, :category], q.include_options
-  end
-  
   def test_default_sort
     q = Query.new
     assert_equal [], q.sort_criteria