Some tests previously made assertions on statsd client methods that
were implemented by a delegated interface patched onto a logger
instance. Those tests have run against a StatsdClient since the
Related Change, so the use of the term 'delegate' in tests no longer
makes sense.
Change-Id: Ie47fa50a226da6ff7b067d6a367758ac9f12ef4c
Related-Change: I3a677bb67c5700da48f89c847f652b4610ba47c2
020b5a78a5