remove unneeded including ApplicationHelper from helper tests

git-svn-id: http://svn.redmine.org/redmine/trunk@12463 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/helpers/issues_helper_test.rb

@@ -18,7 +18,6 @@
 require File.expand_path('../../../test_helper', __FILE__)
 
 class IssuesHelperTest < ActionView::TestCase
-  include ApplicationHelper
   include Redmine::I18n
   include IssuesHelper
   include CustomFieldsHelper

test/unit/lib/redmine/field_format/link_format_test.rb

@@ -19,8 +19,6 @@ require File.expand_path('../../../../../test_helper', __FILE__)
 require 'redmine/field_format'
 
 class Redmine::LinkFieldFormatTest < ActionView::TestCase
-  include ApplicationHelper
-
   def test_link_field_should_substitute_value
     field = IssueCustomField.new(:field_format => 'link', :url_pattern => 'http://foo/%value%')
     custom_value = CustomValue.new(:custom_field => field, :customized => Issue.new, :value => "bar")

test/unit/lib/redmine/field_format/user_field_format_test.rb

@@ -19,8 +19,6 @@ require File.expand_path('../../../../../test_helper', __FILE__)
 require 'redmine/field_format'
 
 class Redmine::UserFieldFormatTest < ActionView::TestCase
-  include ApplicationHelper
-
   fixtures :projects, :roles, :users, :members, :member_roles
 
   def test_user_role_should_reject_blank_values

test/unit/lib/redmine/field_format/version_field_format_test.rb

@@ -19,8 +19,6 @@ require File.expand_path('../../../../../test_helper', __FILE__)
 require 'redmine/field_format'
 
 class Redmine::VersionFieldFormatTest < ActionView::TestCase
-  include ApplicationHelper
-
   fixtures :projects, :versions, :trackers
 
   def test_version_status_should_reject_blank_values

test/unit/lib/redmine/helpers/gantt_test.rb

@@ -29,7 +29,6 @@ class Redmine::Helpers::GanttHelperTest < ActionView::TestCase
            :versions,
            :groups_users
 
-  include ApplicationHelper
   include ProjectsHelper
   include IssuesHelper
   include ERB::Util

test/unit/lib/redmine/wiki_formatting/markdown_formatter.rb

@@ -18,8 +18,6 @@
 require File.expand_path('../../../../../test_helper', __FILE__)
 
 class Redmine::WikiFormatting::MarkdownFormatterTest < ActionView::TestCase
-  include ApplicationHelper
-
   if Object.const_defined?(:Redcarpet)
 
   def setup