How to remove the number displayed when clustering.

I’m using the Leaflet and Leaflet Map plugins in WordPress to create a map that displays voting locations with pins representing each polling station and showing the number of votes at each location. However, when the pins are clustered, the cluster displays the number of markers within it instead of the total number of votes, which is confusing.

Since I haven’t managed to make the cluster display the sum of votes in each grouping, I would prefer to remove the displayed count from the clusters altogether. I included an image on the page link to illustrate what I’m aiming to remove.

The page I need help with: [log in to see the link]