Fix signaling on the producer adapter
Fix signaling on the producer adapter

The current fix is to remove any demand bookkeeping. However, this may
cause frequent signaling now. Eventually, we need (working) a mechanism
that reduces wakeup signaling to a minimum.

DavadDi/actor-framework,DavadDi/actor-framework,DavadDi/actor-framework,actor-framework/actor-framework,actor-framework/actor-framework,DavadDi/actor-framework,actor-framework/actor-framework,actor-framework/actor-framework