Currently this saddle valve is exposed but I would like to close this wall up. Before I do I'd like to know if I should leave the valve as-is or if I should remove it. If I remove it what is the best way to do so?
This used to be a valve that fed a refrigerator. We turned this off some time ago.
Update
I wanted to give everyone an update and hopefully help others looking for assistance. Based on the responses I received I went with a Sharkbite 1/2" coupling (not a slip coupling), and it was pretty straight forward to install. Thanks to all for your feedback.