Hi men.tos,
We have left the hook in many other place too which hook does not function now. This is for the future planning if that may be used on some days. Did you get any problem regarding to this hook ? If yes then simply you can remove it but We recommended not to change the code because if you change the code then while updating to our new version all your customisation code will be lost. So better make child theme and first unhook the functions and the edit the code.