Summary: We were memoizing the reduction trace fetch in the stream interceptor but this was redundant. We let the library handle that. Also pulled the calls into the uidebugger so we have more control over the retry behaviour
Reviewed By: mweststrate
Differential Revision: D45079132
fbshipit-source-id: 7354fce0fddbebdb0b027dade03398a36adc5e9a