Remove logging

script/cibuild

@@ -36,7 +36,6 @@ cp.safeExec.bind(global, 'node script/bootstrap', function(error) {
     cp.safeExec.bind(global, gruntPath + ' ci --stack --no-color'),
     cp.safeExec.bind(global, 'node_modules/.bin/coffee script/upload-release')
   ], function(error) {
-    console.log(error);
     process.exit(error ? 1 : 0);
   });
 })();