These have been there for nearly three years and no one ever mentioned them until this week when in come two reports (one Google-internal and one on the public Internet) calling them funny. I always thought they were demonstrations of how the client might do time-consuming work. Apparently they're spurious and not something also implemented in the other languages' implementations of the route guide example. Let's kill them off.

@jtattermusch: do you remember adding them, and if so, for what reason?