@1aurabrown => Cleans up from #47.

Maybe I misunderstood the test that was removed? It appeared to sync, get an `NSDate` from the `SystemTime` instance, sync again, then compare a new `NSDate` from the same instance. As a result of the sync operations, both dates should be about the same, but since the instructions are only executed a few milliseconds apart, `NSDate` is not accurate enough to compare.