removing esb versioned product directory

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@170890 a5903396-d722-0410-b921-86c7d4935375
copying latest esb product from 4.1.0 branch

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@170891 a5903396-d722-0410-b921-86c7d4935375