Remove unused var

Author: RKBoss6

apps/widsmartbatt/widget.js

@@ -84,7 +84,7 @@
     WIDGETS["widsmartbatt"].draw();
   });
 
-  var id = setInterval(() => WIDGETS["widsmartbatt"].draw(), 60000);
+  setInterval(() => WIDGETS["widsmartbatt"].draw(), 60000);
 
 
 })();