diff --git a/lib/cfpropertylist/rbCFPropertyList.rb b/lib/cfpropertylist/rbCFPropertyList.rb
index fc2f03b..caec0e8 100644
--- a/lib/cfpropertylist/rbCFPropertyList.rb
+++ b/lib/cfpropertylist/rbCFPropertyList.rb
@@ -72,28 +72,12 @@ def append_node(parent, child)
   end
 end
 
-class String
-  unless("".respond_to?(:bytesize)) then
-    def bytesize
-      self.length
-    end
-  end
-end
-
 dirname = File.dirname(__FILE__)
 require dirname + '/rbCFPlistError.rb'
 require dirname + '/rbCFTypes.rb'
 require dirname + '/rbBinaryCFPropertyList.rb'
 require dirname + '/rbPlainCFPropertyList.rb'
 
-require 'iconv' unless "".respond_to?("encode")
-
-# ensure that the module and class exist
-module Enumerable
-  class Enumerator
-  end
-end
-
 begin
   require dirname + '/rbLibXMLParser.rb'
   temp = LibXML::XML::Parser::Options::NOBLANKS # check if we have a version with parser options
@@ -144,7 +128,7 @@ def guess(object, options = {})
     when Time, DateTime, Date
       CFDate.new(object)
 
-    when Array, Enumerator, Enumerable::Enumerator
+    when Array, Enumerator
       ary = Array.new
       object.each do |o|
         ary.push CFPropertyList.guess(o, options)