jslint fix

gadget_json_generated_form_child.js

@@ -611,7 +611,7 @@
         .filter(function (v) { return v; })
         .join(" ")
         // use non-breaking hyphen
-        .replace("-","‑");
+        .replace("-", "‑");
     }
     if (label.textContent) {
       div.appendChild(label);
@@ -1241,7 +1241,6 @@
       var g = this,
         property_name = g.element.getAttribute('data-json-property-name'),
         schema = options.schema,
-        delete_button,
         root;
       g.props.inputs = [];
       g.props.add_buttons = [];