remove old version of figure appendix

Author: jakevdp

README.md

@@ -68,14 +68,6 @@ The code is in IPython notebooks, organized by book chapter and section.
 All code from this book was tested with Python 3.4-3.5, though most of it
 is compatible with Python 2.7 as well.
 
-
-## Figure Appendix
-
-Nearly every figure used in the book was generated using Matplotlib.
-Most figures are generated by the code within the text; those few that are not
-can be found in the online-only [Figure Appendix](figure_appendix/06.00-Figure-Code.ipynb)
-
-
 ## License
 The code here is released under the [MIT license](LICENSE-CODE). Read more at the [Open Source Initiative](https://opensource.org/licenses/MIT).