custom semantic zooming contains multiple overlays checkbox was disabled

CHANGELOG

 minerva (12.2.0~beta.2) unstable; urgency=medium
+  * Bug fix: custom semantic zooming contains multiple overlays checkbox was 
+    disabled (#715) 
   * Bug fix: export to svg contains viewBox info (#716) 
   * Bug fix: import from sbml with layout could crash when two elements 
     occupied the exact same position (#717) 

frontend-js/src/main/js/gui/admin/AddProjectDialog.js

@@ -293,15 +293,6 @@ AddProjectDialog.prototype.createGeneralTabContent = function () {
     help: "Check this checkbox to display each semantic zoom level in the General Overlays"
   }));
 
-  $("[name='project-semantic-zooming']", table).change(function () {
-    var disable = !$("[name='project-semantic-zooming']", table).is(":checked");
-    $("[name='project-semantic-zooming-contains-multiple-overlays']", table).prop("disabled", disable);
-    if (disable) {
-      $("[name='project-semantic-zooming-contains-multiple-overlays']", table).prop("checked", false);
-    }
-  });
-  $("[name='project-semantic-zooming-contains-multiple-overlays']", table).prop("disabled", !$("[name='project-semantic-zooming']", table).is(":checked"));
-
   var saveProjectButton = Functions.createElement({
     type: "button",
     name: "saveProject",