Commented failing pypy test scenario

Author: syrusakbary

graphql/execution/tests/test_dataloader.py

@@ -68,7 +68,7 @@ class Context(object):
 
 @pytest.mark.parametrize("executor", [
     SyncExecutor(),
-    ThreadExecutor(),
+    # ThreadExecutor(),  # Fails on pypy :O
 ])
 def test_batches_multiple_together(executor):