inno: stop shipping pywin32
Ancient versions of Mercurial relied on pywin32 and I suspect
that's why we have this dependency.
We also ship the "keyring" package, which has a dependency
on "pywin32-ctypes" (providing the "win32ctypes" package).
This is a stripped down version of pywin32 that doesn't have
as many dependencies.
Since we don't have a dependency on pywin32 and since pywin32
is a bit annoying to package, let's get rid of it.
With this change, py2exe no longers picks up DLL dependencies
on various UCRT DLLs (because we no longer have a .pyd file
beloning to pywin32 which was pulling them in). So, we were
able to remove code in support of the UCRT DLLs.
.. bc::
The Windows Inno installers no longer ship the pywin32 package.
This package was being bundled for historical reasons. Mercurial
stopped using pywin32 several years ago and the disappearance
of this package should not have any meaningful impact.
Differential Revision: https://phab.mercurial-scm.org/D6067
Our full contribution guidelines are in our wiki, please see:
https://www.mercurial-scm.org/wiki/ContributingChanges
If you just want a checklist to follow, you can go straight to
https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist
If you can't run the entire testsuite for some reason (it can be
difficult on Windows), please at least run `contrib/check-code.py` on
any files you've modified and run `python contrib/check-commit` on any
commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).