How do i take my xbox one profile off someone elses xbox one

You may want to contact support and have them start an unauthorized access investigation. 1-800-4my-xbox if you're in the US/Canada or http://support.xbox.com/contact-us

No, no one else is on my Xbox and @DiseasedBadger, do I completely delete my profile off?

I can't remove the profile without signing in with my password on the xbox one. How else would I do that?

Just to emphasize what StuartATrueRed said:

Unless the games you have were bought on a physical BluRay Disc, you can't transfer/sell the download games to anyone else.

And no person that knows what they are doing will ever give you money for digital download games, even though they might run on the console through the Home Console sharing.

If they know a bit about the Xbox download licensing, they know that if they "buy" the games from you, you can always recover your account to which the games are tied to, and "revoke" the right to play them on the console.

Then, in theory, you could buy a new console, find another gullible buyer that gives you money for the download games, you let them play for a while, revoke your games to yourself, and rinse and repeat.

So unless you find a VERY gullible buyer, no one is going to buy the games you have, unless it's a physical disc version of the game.

Factory resetting the console will remove what is on it, including any games and your account. The games cannot go with the console, because they are attached to the account they were redeemed or purchased on. Once you have reset the console, then you can
sell or gift the console to someone else.

Instructions how to factory reset the console can be found here
https://support.xbox.com/help/hardware-network/console/reset-console-to-factory-defaults