[Speed] performance: remove "pure python" pickle benchmarks?

[R. David Murray]

On Tue, 04 Apr 2017 00:21:33 +0200, Victor Stinner <victor.stinner at gmail.com> wrote:
> I don't see the point of testing the pure Python implementation, since
> the C accelerator (_pickle) is always used by default in Python 3. I
> propose to remove this benchmark. What do you think?

Are these benchmarks always going to be used only for CPython?  I
thought the long term goal was to support multiple implementations?

--David