Remove no longer needed _mount module util

[felixfontein]

SUMMARY

The module util was there to apply a bugfix to some older Python versions. Since we're Python 3.7+ only, this is no longer necessary. This also removes the last code from the collection licensed under PSF 2.0.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

module util
aix_filesystem

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[russoz]

LGTM

[patchback]

Backport to stable-12: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply d30428a on top of patchback/backports/stable-12/d30428ac71b78c29dec528d7ec9af5c4383999bc/pr-11232

Backporting merged PR #11232 into main

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/ansible-collections/community.general.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/stable-12/d30428ac71b78c29dec528d7ec9af5c4383999bc/pr-11232 upstream/stable-12

4. Now, cherry-pick PR Remove no longer needed _mount module util #11232 contents into that branch:

   $ git cherry-pick -x d30428ac71b78c29dec528d7ec9af5c4383999bc

   If it'll yell at you with something like fatal: Commit d30428ac71b78c29dec528d7ec9af5c4383999bc is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x d30428ac71b78c29dec528d7ec9af5c4383999bc

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Remove no longer needed _mount module util #11232 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/stable-12/d30428ac71b78c29dec528d7ec9af5c4383999bc/pr-11232

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
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my source is open — https://github.com/sanitizers/patchback-github-app.

[felixfontein]

@russoz thanks for reviewing!