I'll leave this to @ariporad to review. This commit seems to properly revert the feature, if that's something we want to do.

Alternative approaches would be to display a different warning message instead.

What different message would be displayed? Unless the deprecation is followed through with I wouldn't think there's a need to have a warning message.

@zephraph: we've decided that this till will be unsupported going forward, so we're going to say something along those lines. Do you want to go ahead and add that, or should I?

I don't think a message is necessary. Deprioritize it as a feature for support and shift the burden of maintenance onto the community. We could add a message in the documentation to explain as much.

@zephraph's approach sounds good to me. LGTM

SGTM