You might want to use one to get ADSL broadband at some point, though this is becoming less likely with the rapid rollout of fibre-to-the-home these days. But you only need one point for that, preferably somewhere sensible for your modem, the rest I would take out, we’re never going back to the days of having phones plugged into phone lines in every room...
If you’re renovating anyway, you could look to stick some CAT5 cables to some rooms. These can be used for phone if ever required, but connecting WiFi access points, wired computer connections etc.