diff --git a/config/initializers/active_record_postgresql_referential_integrity_patch.rb b/config/initializers/active_record_postgresql_referential_integrity_patch.rb
deleted file mode 100644
index 1bb73c4664..0000000000
--- a/config/initializers/active_record_postgresql_referential_integrity_patch.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# A combination of fixtures and foreign key constraints requires the postgres
-# user to be superuser. Otherwise an attempt to disable constraints fails.
-# This got fixed in Rails 4 and this patch brings the same behaviour back to
-# Rails 3. It will allow us to run the specs with a nosuperuser postgres user.
-#
-# See:
-#  - https://github.com/matthuhiggins/foreigner/issues/61
-#  - https://github.com/garysweaver/rails/commit/9bb27f7ffe3eb732df737e477cd8fc25e007f77b
-if Rails::VERSION::MAJOR < 4
-  class ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
-    def disable_referential_integrity #:nodoc:
-      if supports_disable_referential_integrity? then
-        begin
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
-        rescue
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER USER" }.join(";"))
-        end
-      end
-      yield
-    ensure
-      if supports_disable_referential_integrity? then
-        begin
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
-        rescue
-          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER USER" }.join(";"))
-        end
-      end
-    end
-  end
-end