Doing 2 things is more complex than 1, but doing 1 new and much more complex thing in addition to 1 old much simpler and already verified thing has very little complexity over omitting the old thing and doing just the new one.
In both cases the work is in adding and testing the new thing.
Whether you comment out or not the old thing does not really change the amount of programmer work and the execution time and required resources are also not affected significantly in this case.
In both cases the work is in adding and testing the new thing.
Whether you comment out or not the old thing does not really change the amount of programmer work and the execution time and required resources are also not affected significantly in this case.