I have always had the habit of taking out hard drives of computers before handing them over to Apple's Genius Bar. I don't know what I'll do when the next generation of laptops has the hard drives soldered in.
You say "next", but this has already been the case for many of Apple's laptops for many years now, and as of last year they now only sell one laptop which doesn't have the SSD soldered on (that's being he 13" MacBook Pro without TouchBar).