Remove dup code from _contribute_exercise.rb
Remove dup code from _contribute_exercise.rb

treiff/exercism.io,treiff/exercism.io,tejasbubane/exercism.io,tejasbubane/exercism.io,tejasbubane/exercism.io,treiff/exercism.io,RaptorRCX/exercism.io,treiff/exercism.io,RaptorRCX/exercism.io,RaptorRCX/exercism.io,tejasbubane/exercism.io,RaptorRCX/exercism.io