Neat URL breaks various Google properties on re-authentication

[teal-bauer]

With Neat URL enabled, requests to admin.google.com as well as other Google requests that would trigger password confirmation ("We want to make sure it's really you") result in an Error 400 instead, as Neat URL removes params during the authentication redirect dance.

Related: #307

As the extension seems to not be developed anymore, I have removed it for the time being.