To remove a recently played playlist on Spotify, follow these steps:

1. Open the Spotify app on your device.
2. Tap on "Library" at the bottom right corner of the screen.
3. Under the "Playlists" section, you'll find your recently played playlists.
4. Find the playlist you want to remove and swipe left on it. This will reveal a hidden menu.
5. Tap on "Remove" or "Delete" to remove the playlist from your recently played list.

Please note that this will not delete the playlist itself, it will only remove it from your recently played list. If you want to delete the playlist entirely, you will need to open the playlist and select the option to delete it.

If you're using Spotify on a desktop:

1. Open Spotify and go to the left-hand column where your playlists are displayed.
2. Hover over the playlist you want to remove until you see a "..." icon.
3. Click on the "..." icon, then select "Delete" from the drop-down menu.

Remember, deleting a playlist is permanent and cannot be undone.