removing bugTrap from SubscriberBase
removing bugTrap from SubscriberBase

Summary: the trap didn't work. We caught nothing.

Reviewed By: alexmalyshev

Differential Revision: D4837282

fbshipit-source-id: b9616fdca24b4bde659ec9d703788c03ca6a5e61

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