gnu: Remove python2-tracing.

* gnu/packages/python-xyz.scm (python2-tracing): Delete variable.

gnu/packages/python-xyz.scm

@@ -20040,32 +20040,6 @@ (define-public python-ttystatus
 (define-public python2-ttystatus
   (package-with-python2 python-ttystatus))
 
-(define-public python2-tracing
-  (package
-    (name "python2-tracing")
-    (version "0.10")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append
-             "http://git.liw.fi/cgi-bin/cgit/cgit.cgi/python-tracing/snapshot/tracing-"
-             version ".tar.gz"))
-       (sha256
-        (base32
-         "06cw4zg42fsvqy372vi2whj26w56vzg5axhzwdjc2bgwf03garbw"))))
-    (build-system python-build-system)
-    (arguments
-     `(#:python ,python-2))
-    (home-page "https://liw.fi/tracing/")
-    (synopsis "Python debug logging helper")
-    (description "@code{python2-tracing} is a python library for
-     logging debug messages.  It provides a way to turn debugging messages
-     on and off, based on the filename they occur in.  It is much faster
-     than using @code{logging.Filter} to accomplish the same thing, which
-     matters when code is run in production mode.  The actual logging still
-     happens using the @code{logging} library.")
-    (license license:gpl3+)))
-
 (define-public python-astroid
   (package
     (name "python-astroid")