Removed the redundant class ArchivalJob

middletier/SQLite/SqliteDatabase.cpp

middletier/SQLite/SqliteDatabase.hpp

middletier/SQLite/SqliteMiddleTierUser.cpp

middletier/SQLite/SqliteMiddleTierUser.hpp

middletier/objectstore/OStoreMiddleTierUser.cpp

middletier/objectstore/OStoreMiddleTierUser.hpp

middletier/sharedtest/MiddleTierUserAbstractTest.cpp

scheduler/ArchivalJob.cpp

scheduler/ArchivalJob.hpp

scheduler/ArchivalJobState.cpp

scheduler/ArchivalJobState.hpp

scheduler/ArchivalRequest.cpp

scheduler/ArchivalRequest.hpp

scheduler/ArchiveToDirRequest.cpp

scheduler/ArchiveToDirRequest.hpp

scheduler/ArchiveToFileRequest.cpp

scheduler/ArchiveToFileRequest.hpp

scheduler/CMakeLists.txt

scheduler/MiddleTierAdmin.hpp

scheduler/MiddleTierUser.hpp