delete unused task MultiRestoreTask
delete unused extension ArchiveLinks
deleting unused extension DataTransfer
removing unused extension DSMW
delete unused extension Interlanguage
delete unused extension LiquidThreads
delete unused extension MoodBar
deleting unused extension OpenStackManager
removing unused extension PageSchemas
removing unused extension QrCode
removing unused extension SemanticPageSeries
removing unused extension TimedMediaHandler
remove unused job RenameUserJob
Merge pull request #4118 from Wikia/jobq-cleanup

Jobq cleanup