Threading service updated to rely on spring rather than context code

I would like to remove the threading service eventually. It seems to just keep track of threads it creates using weak references, but the threads in the set are seemingly never fetched?
So here's a question that is going to keep coming up... this file wasn't directly related to the file I meant to update, but should I still go ahead and fix it? I feel like doing so will lead to that cascading effect that forced us to put all of the spring stuff into one story.