Prepare test data for both CH and MLD algorithms

Leaving log files opened was intentional to avoid missing output
that can appear `child.on('exit',...)`.
With this approach cucumber tests hit locally maximum number
of opened files, because node.js keeps all log files opened.

features/step_definitions/data.js

@@ -269,14 +269,10 @@ module.exports = function () {
         this.writeAndLinkOSM(callback);
     });
 
-    this.Given(/^the data has been (extract|contract)ed$/, (step, callback) => {
+    this.Given(/^the data has been (extract|contract|partition|customiz)ed$/, (step, callback) => {
         this.reprocess(callback);
     });
 
-    this.Given(/^the data has been (partition|customiz)ed$/, (step, callback) => {
-        this.reprocessMLD(callback);
-    });
-
     this.Given(/^osrm\-routed is stopped$/, (callback) => {
         this.OSRMLoader.shutdown(callback);
     });