update fail fast documentation to remove retry language (#1586)
update fail fast documentation to remove retry language (#1586)


rakyll/grpc-go,thinkerou/grpc-go,stanley-cheung/grpc-go,peter-edge/grpc-go,dfawley/grpc-go,fuchsia-mirror/third_party-grpc-grpc-go,grpc/grpc-go,fuchsia-mirror/third_party-grpc-grpc-go,thinkerou/grpc-go,dfawley/grpc-go,menghanl/grpc-go,MakMukhi/grpc-go,improbable-io/grpc-go,rakyll/grpc-go,stanley-cheung/grpc-go,menghanl/grpc-go,grpc/grpc-go,MakMukhi/grpc-go,peter-edge/grpc-go,improbable-io/grpc-go