What's the right way of removing an indoor telephone line?
If you are removing it, remove it.
It's only &quot;short-sighted&quot; if you have any conception that you might want a landline phone there.
You MIGHT be able (depending on how snug it is, and how many layers of paint are on the cable making it fatter) to just stuff the (uncut) cable down the hole in the floor once you have it unstapled.
But simply snipping it off is perfectly reasonable under the &quot;you never envision a landline in that location, or perhaps anywhere in your house, again&quot; premise.