deleted flawed implementation

Sorry to be harsh, but the code was not a correct implementation of the algorithm described here: http://web.archive.org/web/20100428020453/http://www2.dcs.hull.ac.uk/CISRG/publications/DPs/DP10/DP10.html

I have used rdp instead.  Though slow, it gives me much greater reduction and keeps the polygons looking reasonable.

https://pypi.python.org/pypi/rdp