Revert "git-codereview: deflake TestSyncRebase"

This reverts commit dd3919343ed6ab8cad672c16b8c2a514615d9c4e.

Change-Id: Ifa77bd8182f832c1e8553dac8f3f4a87a1db64fa
Reviewed-on: https://go-review.googlesource.com/9940
Reviewed-by: Andrew Gerrand <adg@golang.org>
2 files changed