diff --git a/frontend-js/src/main/js/ServerConnector.js b/frontend-js/src/main/js/ServerConnector.js
index 2d473130e243ade472bd579a7cb7c5c5cbf12cd1..cb419086e9453c8bf57c7d7fa59b4e24ade3c2f5 100644
--- a/frontend-js/src/main/js/ServerConnector.js
+++ b/frontend-js/src/main/js/ServerConnector.js
@@ -428,13 +428,6 @@ ServerConnector.pointToString = function(point) {
   return point.x.toFixed(2) + "," + point.y.toFixed(2);
 };
 
-ServerConnector.columnsToString = function(columns) {
-  if (columns === undefined) {
-    return "";
-  }
-  return columns;
-};
-
 ServerConnector.getModelsUrl = function(queryParams) {
   var modelId = this.getIdOrAsterisk(queryParams.modelId);
   var overlayId = queryParams.overlayId;