Remove About Lamda koans

Signed-off-by: David Laing <david@davidlaing.com>

Author: mrdavidlaing

KoansRunner.html

@@ -17,7 +17,6 @@
   <script type="text/javascript" src="koans/AboutFunctions.js"></script>
   <script type="text/javascript" src="koans/AboutObjects.js"></script>
   <script type="text/javascript" src="koans/AboutMutability.js"></script>
-  <script type="text/javascript" src="koans/AboutLambda.js"></script>
   <script type="text/javascript" src="koans/AboutHigherOrderFunctions.js"></script>
   <script type="text/javascript" src="koans/AboutInheritance.js"></script>
   <script type="text/javascript" src="koans/AboutApplyingWhatWeHaveLearnt.js"></script>