diff --git a/lib/cartodb/models/mapconfig/provider/create-layergroup-provider.js b/lib/cartodb/models/mapconfig/provider/create-layergroup-provider.js
index 4d415420..23f0c117 100644
--- a/lib/cartodb/models/mapconfig/provider/create-layergroup-provider.js
+++ b/lib/cartodb/models/mapconfig/provider/create-layergroup-provider.js
@@ -1,6 +1,3 @@
-var assert = require('assert');
-var step = require('step');
-
 var MapStoreMapConfigProvider = require('./map-store-provider');
 const QueryTables = require('cartodb-query-tables');