Some folks in the Google Webmaster Help forums are asking what happened to the +1 metrics within Webmaster Tools.

The feature that has been within Google Webmaster Tools since June 28, 2011 is gone. Why?

Well, Google said they are removing it. They said in late September, that +1 Reports in Webmaster Tools is also going away on November 14th. They wrote:

So now if you login to your Google Webmaster Tools you will not see the +1 Metrics option.

Forum discussion at Google Webmaster Help.