diff --git a/lib/cartodb/models/mapconfig/provider/map-store-provider.js b/lib/cartodb/models/mapconfig/provider/map-store-provider.js
index 0adebde3..e621738f 100644
--- a/lib/cartodb/models/mapconfig/provider/map-store-provider.js
+++ b/lib/cartodb/models/mapconfig/provider/map-store-provider.js
@@ -1,7 +1,5 @@
 var _ = require('underscore');
-var assert = require('assert');
 var dot = require('dot');
-var step = require('step');
 const QueryTables = require('cartodb-query-tables');
 
 /**