Remove Oltu request and validator implementations (#650)

Change-Id: I290f5db8c1c0238b955c0a062340e208ba60ff05
diff --git a/full/Changes b/full/Changes
index b31f263..88bd821 100644
--- a/full/Changes
+++ b/full/Changes
@@ -19,6 +19,7 @@
 - Removed OpenID
 - Fixed clearing cache
 - Updated token response using Nimbus (#650)
+- Remove Oltu request and validator implementations (#650)
 
 # version 0.71