diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index c2cab9d9..7bf10e81 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -7,11 +7,6 @@
 
 'use strict';
 
-/*
- * Database Layout:
- *  (inherits all from txdb)
- */
-
 var bcoin = require('../env');
 var AsyncObject = require('../utils/async');
 var constants = bcoin.constants;