Muting a code review
Let's say you've committed some unimportant changes to a branch that is under a code review. You become another one of the review authors, even though you don't want your changes reviewed or don't even want to follow the review progress. Being an author, you cannot remove yourself from the review, but you can mute it to stop receiving updates in your email and news feed.
To mute a review:
Go to the review home page.
In the left pane, under the Overview tab, click your userpic then Mute: