How to replace a LED driver with a plug-able power adapter?
Like everyone else, I'm pretty sure you have, somewhere, a box full of old wall warts which have long been separated from the stuff they once powered.

Grab one of suitable size, open it, throw away the contents, and replace them with your current LED driver. You can get rid of its plastic enclosure and only use its PCB.

Add a wire and connector to your lamp.

You can also purchase such enclosures directly.