chore(warning): fix code to erase complains

src/main/frontend/util.cljc

@@ -1,4 +1,5 @@
 (ns frontend.util
+  #?(:clj (:refer-clojure :exclude [format]))
   (:require
       #?(:cljs [cljs-bean.core :as bean])
       #?(:cljs [cljs-time.coerce :as tc])