* SpecialEmailUser::validateTarget(), ::getTarget() without a sender/user
specified, deprecated in 1.30, have been removed.
* BufferingStatsdDataFactory::getBuffer(), deprecated in 1.30, has been removed.
* SpecialEmailUser::validateTarget(), ::getTarget() without a sender/user
specified, deprecated in 1.30, have been removed.
* BufferingStatsdDataFactory::getBuffer(), deprecated in 1.30, has been removed.