Fix security bug in logs

When a method with signature containing "AuthPassword" is passed, the value returned is changed to *********** in logs
e.g...  Execution time of : DmiProperties.getAuthPassword() with argument[s] = *********** ...

Legacy code cleaning also included

Issue-ID: CPS-1226
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: Ic4914eae7e5ed6d361287413d17abfe50a3788ae
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index aa09eee..5d3aa92 100755
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -40,6 +40,13 @@
 ---------
    - None
 
+Security Notes
+--------------
+
+*Fixed Security Issues*
+
+   - `CPS-1226 <https://jira.onap.org/browse/CPS-1226>`_  Security bug in the logs
+
 Version: 3.1.0
 ==============