Revert "Fixes deduping of streaming events."

This reverts commit c120cbe1bb915334bff168137222c87a5f8f3963.
Revert "Fixes streaming events deduping test."

This reverts commit bee9fdab7b2cbdc2a2ee4d6ca9c87a1bab6559fb.
Revert "Adds streaming endpoint dedupe test."

This reverts commit d81b985ffbff0f52a58a2c1ec16ca5426a8fcce6.