[Steven Zahm]

@ Martin

Those are the required attribution links for the Leaflet library (3rd party library used to display maps) and the Wikimedia Map tiles (the actual maps). These are required per their terms of use.

You have two options, do not display the maps or use CSS to hide attributions using CSS:

.leaflet-control-attribution.leaflet-control {
    display: none;
}

Hope this helps!

ps. Of course hiding the attributions will likely put the site in violation terms of use.