remove non-free ebook

Author: revolunet

issues.json

@@ -522,14 +522,5 @@
       "info":"This book is a collection of the best practices for using Flask. There are a lot of pieces to the average Flask application.",
       "url":"http://exploreflask.com",
       "cover": "img/exploreflask.png"
-    },
-    {
-      "title":"Learning Python, 4th Edition",
-      "author":"Mark Lutz",
-      "authorUrl":"http://learning-python.com/index.html",
-      "level":"Beginner",
-      "info":" It's an easy-to-follow self-paced tutorial, based on author and Python expert Mark Lutz's popular training course.",
-      "url":"http://it-ebooks.info/book/304/",
-      "cover":"img/learn4.jpg"
     }
 ]}