fix drop forgotten debug statement

Author: zajca

tests/StorageApiTestCase.php

@@ -265,9 +265,6 @@ public function assertLinesEqualsSorted($expected, $actual, $message = '')
     public function assertArrayEqualsSorted($expected, $actual, $sortKey, $message = '')
     {
         $comparsion = function ($attrLeft, $attrRight) use ($sortKey) {
-            var_export($attrLeft);
-            var_export($sortKey);
-            var_export($attrRight);
             if ($attrLeft[$sortKey] == $attrRight[$sortKey]) {
                 return 0;
             }