Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 29 May 2023 01:38:59 +0200] rev 50625
stream-clone: remove unused code in test-clone-stream.t
We are not using the extension we create inline, we are using
`tests/testlib/ext-stream-clone-steps.py`. So let us deleted the unused version.