Remove lazy loading of natives files and the natives cache....

src/macros.py

Index: src/macros.py
===================================================================
--- src/macros.py	(revision 3777)
+++ src/macros.py	(working copy)
@@ -104,10 +104,6 @@
 # Macros implemented in Python.
 python macro CHAR_CODE(str) = ord(str[1]);
 
-# Accessors for original global properties that ensure they have been loaded.
-const ORIGINAL_REGEXP = (global.RegExp, $RegExp);
-const ORIGINAL_DATE   = (global.Date, $Date);
-
 # Constants used on an array to implement the properties of the RegExp object.
 const REGEXP_NUMBER_OF_CAPTURES = 0;
 const REGEXP_FIRST_CAPTURE = 3;