remove autotools build

Signed-off-by: Andy Green <andy.green@linaro.org>
diff --git a/changelog b/changelog
index 985d71b..07b6ace 100644
--- a/changelog
+++ b/changelog
@@ -44,6 +44,9 @@
 
  - CIPHERS_LIST_STRING is removed
 
+ - autotools build has been removed.  See README.build for info on how to
+ 	use CMake for your platform
+
 
 v1.21-chrome26-firefox18
 ========================