HIVE-8056: SessionState.dropSessionPaths should use FileSystem.getLocal(conf) to delete local files (Hari Sankar Sivarama Subramaniyan reviewed by Vaibhav Gumashta)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1624633 13f79535-47bb-0310-9956-ffa450edef68