Removing individual tracks from the RSS feed
To remove a track from your RSS feed, go to the Permission tab within the track's edit page. Uncheck the circle that says ‘Include in RSS feed’.
Removing multiple tracks from the RSS feed
If you want to remove multiple tracks from your RSS feed at once, go to your Tracks page. Check the tracks that you would like to remove from your RSS feed, then go to ‘Edit tracks’ and choose Permissions from the drop-down menu. Uncheck the circle that says ‘Include in RSS feed’ and save.
Please note: When you remove tracks from your RSS feed, it may take up to 24 hours for iTunes to recognize the change.