AsyncState is a broken link in the documentation

[nickretallack]

If you view this documentation page, it links to AsyncState, but documentation for that doesn't exist.

Does AsyncState exist anymore, or should this link be removed?

[mjackson]

@nickretallack The link should be removed.

[nickretallack]

I found another link to it. You should probably grep through the project to remove all of these.

[mjackson]

Done. Thanks @nickretallack.