likes/dislikes

Is there a way for a person to remove their like/dislike? Say they accidentally clicked on it and want to remove it.

As the title says ... im looking for a possibility to delete all likes/dislikes ect. from a single Post. A reset for all or a specific buton per Post. So my Question is did somebody accomplished this already? I browsed the forum till back 2011 and found nothing related to this question...