remove travis leftovers

test/support/additional_environment.rb

@@ -1,5 +0,0 @@
-# for travis debugging
-# config.logger = Logger.new(STDOUT)
-# config.logger.level = Logger::INFO
-# config.log_level = :info
-

test/support/database.yml.travis

@@ -1,8 +0,0 @@
-test:
-  adapter: postgresql
-  encoding: unicode
-  pool: 5
-  database: travis_ci_test
-  user: postgres
-
-

test/test_helper.rb

@@ -1,2 +1,2 @@
-require File.expand_path(File.dirname(__FILE__) + '/../../../test/test_helper')
+require_relative '../../../test/test_helper'