Merge pull request #9252 from pllim/rm-issue2pr

DOC: Remove issue2pr section

docs/development/workflow/additional_git_topics.rst

@@ -279,44 +279,6 @@ and the history looks now like this::
 If it went wrong, recovery is again possible as explained :ref:`above
 <recovering-from-mess-up>`.
 
-Converting a GitHub issue to a pull request
-===========================================
-
-Sometimes you have a branch in your own GitHub repository designed to
-fix one particular issue.  If that issue is listed on GitHub, a natural
-way to address it is to convert the issue to a pull request by
-attaching code containing the fix for the issue. This can currently only be
-done using the GitHub API (there's no button or anything on the web
-site that does it, at least as of 2/6/2012). There are two options to do this,
-both of which only work if you own the repository or have the ability to commit
-directly to it (for Astropy, that means being an Astropy maintainer):
-
-* You can use the script at https://gist.github.com/1750715, which will
-  do this for you automatically |emdash| just download the script and run it as
-  a python command-line script, using the ``python issue2pr.py --help``
-  option to determine the precise usage.
-
-* You can use the ``hub`` command-line utility provided `here
-  <https://github.com/github/hub>`_ by GitHub. Once installed, you can
-  attach a branch to a pull request by doing::
-
-          hub pull-request -i <ID> -b astropy:master -h <USER>:<BRANCH>
-
-  where ``<ID>`` is the ID of the issue, ``<USER>`` is the username, and
-  ``<BRANCH>`` is the name of the branch you want to attach to the
-  issue. For example::
-
-          hub pull-request -i 42 -b astropy:master -h galahad:feature
-
-  will attach the ``feature`` branch from ``galahad``'s Astropy
-  repository to issue 42.
-
-  The ``hub`` command can do a lot more to interact with GitHub, so be
-  sure to read their documentation. For example, you can fetch all
-  branches of a repository for a given user by doing::
-
-          hub fetch <USER>
-
 .. _merge-commits-and-cherry-picks:
 
 Merge commits and cherry picks