Ring Door Bell - Remove

I recently purchased a new a Ring Doorbell 3 Plus to replace my old 1st Gen model. I have it all setup in the app and everything is working fine.However, I'd like to remove my old 1st Gen model from the Ring App, but I still want the history & motion videos that are saved to the Ring Protect Plans in the cloud.Will they still be kept or deleted if I remove the device? Or do I need to wait 30 days for them to be aged out of the cloud and then I can remove the device without impacting the videos?