Also, remove unnecessary variable

Change-Id: Ic2a8966b14cd4dab4e7e8fcd3496f10940e9b1f7
Reviewed-on: https://go-review.googlesource.com/c/sync/+/848685
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>