import.rb in reso-0.1.6.4

- old
+ new

@@ -1,7 +1,6 @@
 class Import < ActiveRecord::Base
 
-  require "activerecord-import/base"
   require 'nokogiri'
   require 'open-uri'
   require 'open_uri_redirections'
 
   before_save :set_import_format