Remove deferred render

[joeldrapper]

This change removes the deferred render pattern as something you can opt into and instead makes it the default behaviour, with one small difference. You can yield any content that was captured from the component. It is no longer vanished.

[hangsu]

Will this behavior be replaced with a def deferred = true as suggested in #784?

[joeldrapper]

Will this behavior be replaced with a def deferred = true as suggested in #784?

This is actually a sketch I wanted to run by @willcosgrove for how we could merge deferred render and normal rendering so you don’t need to pick. Essentially, you could remove all the include DeferredRenders without any other changes.

[stephannv]

@joeldrapper did this sketch fail? What are the plans about DeferredRender? I'm keeping an eye on this because my gem Phlex::Slotable depends on DeferredRender.

[joeldrapper]

Yeah, I think we’re going to have to keep things essentially the way they’ve always been. I was hoping to be able to merge them together but there are too many issues. Phlex becomes less flexible.