Remove user tab patch (#304)

[ci skip]

lib/open_project/costs/engine.rb

@@ -95,9 +95,10 @@ module OpenProject::Costs
     patch_with_namespace :BasicData, :SettingSeeder
     patch_with_namespace :ActiveSupport, :NumberHelper, :NumberToCurrencyConverter
 
-    initializer 'patch helpers' do
-      require_relative('patches/users_helper_patch')
-    end
+    add_tab_entry :user,
+                  name: 'rates',
+                  partial: 'users/rates',
+                  label: :caption_rate_history
 
     add_api_attribute on: :work_package, ar_name: :cost_object_id
 

lib/open_project/costs/patches/users_helper_patch.rb

@@ -1,34 +0,0 @@
-#-- copyright
-# OpenProject Costs Plugin
-#
-# Copyright (C) 2009 - 2014 the OpenProject Foundation (OPF)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# version 3.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#++
-
-module OpenProject::Costs::Patches::UsersHelperPatch
-  def self.included(base) # :nodoc:
-    base.prepend(InstanceMethods)
-  end
-
-  module InstanceMethods
-    # Adds a rates tab to the user administration page
-    def user_settings_tabs
-      # Core defined data
-      super + [{ name: 'rates', partial: 'users/rates', label: :caption_rate_history }]
-    end
-  end
-end
-
-UsersHelper.send(:include, OpenProject::Costs::Patches::UsersHelperPatch)