Removed unused variable.
Removed unused variable.

yaml/pyyaml,jamesbroadhead/pyyaml,fuchsia-mirror/third_party-pyyaml,yaml/pyyaml,fuchsia-mirror/third_party-pyyaml,jamesbroadhead/pyyaml,anishathalye/pyyaml,yaml/pyyaml,anishathalye/pyyaml