Refactor OrphanImporter#extract_orphans
Refactor OrphanImporter#extract_orphans

+ Remove unnecessary return
+ alter control flow - don't check for duplicates if no spreadsheet 
+ remove unused variable assignment
razorcd/osra,gmunumel/osra,NikitaAvvakumov/osra,jmorcate/osra,AgileVentures/osra,ZmagoD/osra,evo2013/osra,b264/osra,motasem-salem/osra,SergiosLen/osra,robbiejackson/osra,robbiejackson/osra,SergiosLen/osra,ZmagoD/osra,PurityControl/osra,evo2013/osra,guangfanxu/osra,AgileVentures/osra,gmunumel/osra,NikitaAvvakumov/osra,robbiejackson/osra,jmorcate/osra,motasem-salem/osra,motasem-salem/osra,razorcd/osra,PurityControl/osra,guangfanxu/osra,jmorcate/osra,NikitaAvvakumov/osra,b264/osra,gmunumel/osra,guangfanxu/osra,SergiosLen/osra,AgileVentures/osra,b264/osra,razorcd/osra,PurityControl/osra,ZmagoD/osra