Clear ResumeCache for keepalives on client
Clear ResumeCache for keepalives on client

Summary:
We didn't use to clear the resume cache on the client, now we do.
MUST land after D4650124 has been deployed to the gateways or we'll use our own position.

Reviewed By: lehecka

Differential Revision: D4650204

fbshipit-source-id: 7e49c564ee704d5332611a250f58dc23fbd6b40d

phoad/rsocket-cpp,alexmalyshev/rsocket-cpp,phoad/rsocket-cpp,alexmalyshev/rsocket-cpp,ReactiveSocket/reactivesocket-cpp,ReactiveSocket/reactivesocket-cpp,vjn/rsocket-cpp,alexmalyshev/rsocket-cpp,phoad/rsocket-cpp,rsocket/rsocket-cpp,rsocket/rsocket-cpp,rsocket/rsocket-cpp,phoad/rsocket-cpp,alexmalyshev/rsocket-cpp,rsocket/rsocket-cpp,vjn/rsocket-cpp,phoad/rsocket-cpp,ReactiveSocket/reactivesocket-cpp,vjn/reactivesocket-cpp,vjn/reactivesocket-cpp,vjn/reactivesocket-cpp,vjn/rsocket-cpp