完善钱包初始化流程

cocos/scripting/js-bindings/manual/jsb_global.cpp

@@ -1086,10 +1086,7 @@ static bool JSB_prepareWallet(se::State& s)
                                       Application::getInstance()->getKeyMaster(),
                                       Application::getInstance()->getKeySecond()
                                       );
-    std::string result = StringUtils::format("{\"address\": \"%s\"}\n",
+    s.rval().setString(address);
-                                             address.c_str()
-                                             );
-    s.rval().setString(result);
     return true;
   }