Removed Python Algorithms (PDF): Invalid Link

Removed the following link:
* [Python Algorithms](http://kysmykseka.net/koti/wizardry/Programming/Python/Apress%20-%20Python%20Algorithms%20Mastering%20Basic%20Algorithms%20in%20the%20Python%20Language.pdf) (PDF)

free-programming-books.md

@@ -1750,7 +1750,6 @@ For resources on Angular, Backbone, D3, Dojo, Ember, Express, jQuery, Knockout,
 * [Python 2 Official Documentation](https://docs.python.org/2/download.html) (PDF, HTML, TEXT) (2.x)
 * [Python 2.7 quick reference](http://infohost.nmt.edu/tcc/help/pubs/python/web/) - New Mexico Tech (2.7)
 * [Python 3 Official Documentation](https://docs.python.org/3/download.html) (PDF, EPUB, HTML, TEXT) (3.x)
-* [Python Algorithms](http://kysmykseka.net/koti/wizardry/Programming/Python/Apress%20-%20Python%20Algorithms%20Mastering%20Basic%20Algorithms%20in%20the%20Python%20Language.pdf) (PDF)
 * [Python Bibliotheca](http://openbookproject.net/pybiblio/)
 * [Python Cookbook](http://chimera.labs.oreilly.com/books/1230000000393/index.html) - David Beazley
 * [Python for Econometrics](http://www.kevinsheppard.com/images/0/09/Python_introduction.pdf) - Kevin Sheppard (PDF) (2.7.5)