diff --git a/frontend-js/src/main/js/ServerConnector.js b/frontend-js/src/main/js/ServerConnector.js
index ffdb7c9bb9650877f5fd27d8bdfc40b82f447376..3f1c0a6d21b678145d163260d4ba4f388fac490d 100644
--- a/frontend-js/src/main/js/ServerConnector.js
+++ b/frontend-js/src/main/js/ServerConnector.js
@@ -440,13 +440,6 @@ 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;