gnu: Remove python2-subprocess32.

* gnu/packages/python-xyz.scm (python2-subprocess32): Delete variable.
* gnu/packages/patches/python2-subprocess32-disable-input-test.patch: Delete
file.
* gnu/local.mk (dist_patch_DATA): De-register it.

gnu/packages/python-xyz.scm

@@ -14401,43 +14401,6 @@ to the Python ecosystem.")
 3.2.3 for use with older versions of Python and PyPy.")
     (license license:expat)))
 
-(define-public python2-subprocess32
-  (package
-    (name "python2-subprocess32")
-    (version "3.2.7")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "subprocess32" version))
-              (sha256
-               (base32
-                "14350dhhlhyz5gqzi3lihn9m6lvskx5mcb20srx1kgsk9i50li8y"))
-              (patches
-               (search-patches "python2-subprocess32-disable-input-test.patch"))))
-    (build-system python-build-system)
-    (arguments
-     `(#:python ,python-2
-       ;; The test suite fails with Python > 2.7.13:
-       ;;     import test.support
-       ;; ImportError: No module named support
-       #:tests? #f
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'patch-/bin/sh
-           (lambda _
-             (substitute* '("subprocess32.py"
-                            "test_subprocess32.py")
-               (("/bin/sh") (which "sh")))
-             #t)))))
-    (home-page "https://github.com/google/python-subprocess32")
-    (synopsis "Backport of the subprocess module from Python 3.2")
-    (description
-     "This is a backport of the @code{subprocess} standard library module
-from Python 3.2 and 3.3 for use on Python 2.  It includes bugfixes and some
-new features.  On POSIX systems it is guaranteed to be reliable when used
-in threaded applications.  It includes timeout support from Python 3.3 but
-otherwise matches 3.2’s API.")
-    (license license:psfl)))
-
 (define-public python-promise
   (package
     (name "python-promise")