mikeash/MAKVONotificationCenter — pull request #6 by gwynne (2012-02-28 14:11:30+00:00)
Title: Some leftover cruft from the switch to `__unsafe_unretained` references

A comment and the call to `-deregister` in `-dealloc` were left over from the changeover to `__unsafe_unretained` references to target and observer, removed them.