Remove the unsupported demos directory. The files it contains are now available at http://interactive.freertos.org.

Demo/Unsupported_Demos/readme.txt

@@ -1,20 +0,0 @@
-This directory contains a set of FreeRTOS.org ports and demo applications that 
-have not yet been adopted into the official FreeRTOS.org release.  The files 
-are supplied within .zip archives exactly as they were sent to me.  They have
-not been tested or verified by either myself or WITTENSTEIN (the official 
-commercial partner) so are provided as is and without support.
-
-The files contained within each .zip file vary, some contain all the files
-required to run a port demo, while other require adding to the standard .zip
-download directory tree.
-
-Some .zip files contain ports and demos that are based on historic versions of
-FreeRTOS.org.
-
-Please note that some .zip files contain copies of the lwIP TCP/IP stack, and 
-where this is the case users must be aware that lwIP is licensed separately from
-FreeRTOS.org.  The lwIP license can be viewed here:
-http://savannah.nongnu.org/projects/lwip/ .
-
-Many thanks to all contributors.
-