cut references to exception_wrapper::hasThrownException
cut references to exception_wrapper::hasThrownException

Summary: No such function exists.

Reviewed By: luciang

Differential Revision: D28276400

fbshipit-source-id: 57d9ede6df0570f2cc8b0a0b5bd77f2cb6be9fd7

facebook/folly,facebook/folly,facebook/folly,facebook/folly,facebook/folly