It's easy to stop calling a now-unused function when some behaviour is no longer needed. The system is made more simple if you remove the function, though. Th

It's easy to stop calling a now-unused function when some behaviour is no longer needed. The system is made more simple if you remove the function, though. This is more so if only part of the behaviour of a function is no longer desired - the function becomes easier to understand when it's trimmed down, but it's harder to make that change.