Is there a way to remove flexmock from an object?

Question

You've mocked this module/object:

flexmock(foo)

Is there any way to reverse this process, so that when you call into foo, you can be sure that you're not hitting a mocked method?

This would enable testing different components in isolation. If I where to name the method, I'd make it look like

foo.unmock()

But I don't think that method actually exists.