To undo a retweet on #Twitter, you can follow these simple steps:
Find the tweet that you retweeted.
Click on the "Retweeted" icon located below the tweet.
Select "Undo Retweet" from the pop-up menu.
Confirm that you want to undo the retweet by clicking "Undo."
Once you've completed these steps, the tweet will no longer appear on your profile as a retweet.