clean up files when they're size 0
clean up files when they're size 0

getto23/itunes-connect-auto-ingest,getto23/itunes-connect-auto-ingest,kmonaghan/itunes-connect-auto-ingest,kmonaghan/itunes-connect-auto-ingest,kmonaghan/itunes-connect-auto-ingest,getto23/itunes-connect-auto-ingest