Remove android tutorials

Author: daniellevass

android/0activity-lifecycle/tutorial.md

@@ -81,20 +81,13 @@ <h2>Python</h2>
         <h3>Other Recommended Python Resources</h3>
         <ul>
           <li><a href="http://pymbook.readthedocs.io/en/latest/">Python For You and Me</li>
-          <li><a href="https://learnpythonthehardway.org/book/">Learn Python The Hard Way</li>
+          <li><a href="https://learnpythonthehardway.org/book/">Learn Python The Hard Way</a></li>
         </ul>
 
         <h2>Android</h2>
-        <ul>
-          <li><a href="android/0resources/tutorial.html">Resources</a></li>
-          <li><a href="android/1introduction/tutorial.html">Lesson 1 -
-              Introduction to Android Development with Cookie
-              Clicker</a></li>
-          <li><a href="android/0activity-lifecycle/tutorial.html">Misc  -
-              the Android Lifecycle</a></li>
-          <li><a href="android/0layouts/tutorial.html">Misc -
-              layouts to build a profile page
-              </a></li>
+        <p>Available only at special codebar android workshops! Materials over at
+          <a target="_blank" href="https://codebar.github.io/android-tutorials/">
+            https://codebar.github.io/android-tutorials/</a></p>
         </ul>
 
         <h2>PHP</h2>