Someone can cut a plug out of matching wood and fill the hole...stain it to match the beam.

Why was this question asked exactly the same way 7 years ago? Did you not care for the answers you received?

https://www.houzz.com/discussions/860920/patching-a-hole-in-a-wood-beam

How high is it? Sometimes you can attach a flat cover plate and just paint over it and it will disappear.

As far as I know, the electrical code states that an unused electrical outlet box in the ceiling requires a cover. You cannot patch it.

Are the beams natural wood or painted ? A picture would be helpful but the box itself requires a removeable cover in most codes so a bit more info. Sometimes the line can be pulled and just deleted but that wil need to be dealt with with your electrician

Patricia here is the picture! Thank you!

Do you have an attic above for easy removal and replacing in another location? Where do you want to remove it to.? Have you looked under it to see if it is actually in a box? At my last house we had one moved, from a beam to the center of the room, and it turned out, there was no box, it was just a half inch or so sized hole, that the wire ran through. The mounting bracket for the light was just screwed into the beam itself, and was a couple small screw holes.