Remove metafield redundancies

Change-Id: I4b33005c740398421a29ceb555738696ae471d60
diff --git a/Changes b/Changes
index 5f36b1d..b325da6 100644
--- a/Changes
+++ b/Changes
@@ -1,8 +1,10 @@
-0.58.4 2019-01-08
+0.58.4 2019-01-09
     - [cleanup] Remove deprecated methods setLicense/getLicense,
       setTokenization/getTokenization, setLayerInfo/getLayerInfo,
       setField/getField (including json serialization)
       (diewald)
+    - [cleanup] Remove redundancy for meta field setting in
+      AbstractDocument and FieldDocument.
 
 0.58.3 2018-12-17
     - [feature] Introduced attachements as meta data fields