gnu: python-pytest-mp: Remove variable.

* gnu/packages/python-check.scm (python-pytest-mp): Upstream archived this
project and it is not used by any other packages.

Change-Id: Ibe0d98b8d7442a29aee7fcddf508caa40db72a0c

gnu/packages/python-check.scm

@@ -2439,42 +2439,6 @@ reducing a number of combinations of variables into a lesser set that covers
 most situations.")
     (license license:expat)))
 
-(define-public python-pytest-mp
-  (package
-    (name "python-pytest-mp")
-    (version "0.0.4p2")
-    (source
-     (origin
-       (method git-fetch)
-       (uri (git-reference
-             (url "https://github.com/ansible/pytest-mp")
-             (commit "49a8ff2ca9ef62d8c86854ab31d6b5d5d6cf3f28")))
-       (file-name (git-file-name name version))
-       (sha256
-        (base32 "01v98b6n3yvkfmxf2v38xk5ijqlk6ika0yljwkhl5bh6qhq23498"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     (list python-pytest python-psutil))
-    (arguments
-     ;; tests require setuptools-markdown, which is deprecated and not in guix
-     '(#:tests? #f
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'remove-useless-requirements
-           (lambda _
-             (substitute* "setup.py"
-               ((" setup_requires=") " #")))))))
-    (home-page "https://github.com/ansible/pytest-mp")
-    (synopsis  "Segregate tests into several processes")
-    (description "pytest-mp is a minimalist approach to distribute and
-segregate pytest tests across processes using python's multiprocessing library
-and is heavily inspired by pytest-concurrent and pytest-xdist.  As a very
-early beta, it doesn't pledge or intend to support the majority of platforms
-or use cases.  Design is based on supporting slow, io-bound testing with often
-tedious system under test configuration that can benefit from running several
-tests at one time.")
-    (license license:expat)))
-
 (define-public python-aioresponses
   (package
     (name "python-aioresponses")