phabricator: remove tests and all recordings
The next commit is going to change the format of conduit API requests so none
of the VCR recordings will match and all the tests will fail.
Differential Revision: https://phab.mercurial-scm.org/D7051
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
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$ make # see install targets
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$ hg debuginstall # sanity-check setup
$ hg # see help
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