diff --git a/packaging/conf/000-establish-connection.rb b/packaging/conf/000-establish-connection.rb
deleted file mode 100644
index e909da9235..0000000000
--- a/packaging/conf/000-establish-connection.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-#-- copyright
-# OpenProject is a project management system.
-# Copyright (C) 2012-2015 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.
-#
-# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
-# Copyright (C) 2006-2013 Jean-Philippe Lang
-# Copyright (C) 2010-2013 the ChiliProject Team
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# 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.
-#
-# See doc/COPYRIGHT.rdoc for more details.
-#++
-
-# Force the usage of config/database.yml instead of DATABASE_URL.
-# Used so that query parameters from the DATABASE_URL are correctly used (e.g. SSL settings).
-config = YAML.load(ERB.new(File.read(Rails.root.join("config/database.yml"))).result)[Rails.env.to_s]
-ActiveRecord::Base.establish_connection config
diff --git a/packaging/setup b/packaging/setup
index fa8bd128ec..ea55537af6 100755
--- a/packaging/setup
+++ b/packaging/setup
@@ -4,8 +4,6 @@ echo "ruby '2.1.6'" > Gemfile.local
 cp -f packaging/conf/configuration.yml config/configuration.yml
 sed -i "s|config.serve_static_files = false|config.serve_static_files = true|" config/environments/production.rb
 
-cp -f packaging/conf/000-establish-connection.rb config/initializers/
-
 # Specific npmrc used for packaging
 cp -f packaging/.npmrc .npmrc