Sounds like you’re not using it, but I’m not sure I’d rip it out either. The next owner of your house may prefer to use it for broadband (fibre to the cabinet can be quite fast over that old cable these days) or want a fixed phone line for various reasons.
Definitely an argument for not putting phone lines into new houses though. Even your cable TV wire is obsolete compared to the fibre Eir/SIRO are running into houses these days.