minor: don't notify anyone when pushing commits to Gerrit
minor: don't notify anyone when pushing commits to Gerrit

See https://gerrit-review.googlesource.com/Documentation/user-upload.html

By default, this Gerrit instance will add the original patch author as a
reviewer and add them to the attention set.

E.g. https://linux-review.googlesource.com/c/linux/kernel/git/torvalds/linux/+/5981

So anyone who has looked at the instance will now get duplicate emails
about their patches, which is suboptimal.

google/lkml-gerrit-bridge