Open the X app or website
Go to your profile
Select the Likes tab
Open the post you liked
Click or tap the like icon again to unlike it
Repeat for each post you want removed from your Likes tab
Set your account to protected if you want to limit who can see your activity
Go to Settings and privacy
Select Privacy and safety
Turn on Protect your posts
Keep in mind there is no direct setting to hide your Likes tab completely from everyone on X