Removed references to download of Waste.

Mac/Demo/building.html

@@ -181,11 +181,6 @@ then the Tk library, then SimpleTk (which can again be tested with
 <code>ls -l</code>). If this all worked you are all set to try
 building Python.
 
-<H2>Building Waste</H2>
-
-You do not need to build the Waste libraries, as Python includes the
-source modules themselves.
-
 <H2>The organization of the Python source tree</H2>
 
 Time for a short break, while we have a look at the organization of