fixing https://wso2.org/jira/browse/IDENTITY-1443

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@179327 a5903396-d722-0410-b921-86c7d4935375
Removed obsolete clustering config parameters

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@179329 a5903396-d722-0410-b921-86c7d4935375