Distutils no longer needs to remain compatible with 2.3 (GH-11423)

diff --git a/Lib/distutils/README b/Lib/distutils/README
index 408a203..23f4885 100644
--- a/Lib/distutils/README
+++ b/Lib/distutils/README
@@ -8,6 +8,4 @@
 
     http://www.python.org/sigs/distutils-sig/
 
-WARNING : Distutils must remain compatible with 2.3
-
 $Id$