commented invalid stub

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178534 a5903396-d722-0410-b921-86c7d4935375
remove unwanted methods

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178535 a5903396-d722-0410-b921-86c7d4935375