Remove mocked coro

[polkapolka]

What do these changes do?

Removed a function that was redundant to AsyncMock functionality.

Are there changes in behavior for the user?

No.

Is it a substantial burden for the maintainers to support this?

No.

Related issue number

Fixes #9212

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the CHANGES/ folder

  • name it <issue_or_pr_num>.<type>.rst (e.g. 588.bugfix.rst)

  • if you don't have an issue number, change it to the pull request
    number after creating the PR

    • .bugfix: A bug fix for something the maintainers deemed an
      improper undesired behavior that got corrected to match
      pre-agreed expectations.
    • .feature: A new behavior, public APIs. That sort of stuff.
    • .deprecation: A declaration of future API removals and breaking
      changes in behavior.
    • .breaking: When something public is removed in a breaking way.
      Could be deprecated in an earlier release.
    • .doc: Notable updates to the documentation structure or build
      process.
    • .packaging: Notes for downstreams about unobvious side effects
      and tooling. Changes in the test invocation considerations and
      runtime assumptions.
    • .contrib: Stuff that affects the contributor experience. e.g.
      Running tests, building the docs, setting up the development
      environment.
    • .misc: Changes that are hard to assign to any of the above
      categories.

  • Make sure to use full sentences with correct case and punctuation,
    for example:

    Fixed issue with non-ascii contents in doctest text files
    -- by :user:`contributor-gh-handle`.

    Use the past tense or the present tense a non-imperative mood,
    referring to what's changed compared to the last released version
    of this project.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.75%. Comparing base (a4be2cb) to head (ee50d49).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10910      +/-   ##
==========================================
- Coverage   98.75%   98.75%   -0.01%     
==========================================
  Files         129      129              
  Lines       38938    39072     +134     
  Branches     2164     2164              
==========================================
+ Hits        38454    38586     +132     
- Misses        336      337       +1     
- Partials      148      149       +1     

Flag	Coverage Δ
CI-GHA	98.64% <100.00%> (-0.01%)	⬇️
OS-Linux	98.34% <98.57%> (+<0.01%)	⬆️
OS-Windows	96.50% <98.57%> (-0.01%)	⬇️
OS-macOS	97.49% <98.57%> (+<0.01%)	⬆️
Py-3.10.11	97.39% <100.00%> (+<0.01%)	⬆️
Py-3.10.17	97.92% <98.57%> (+<0.01%)	⬆️
Py-3.11.12	97.96% <98.57%> (-0.04%)	⬇️
Py-3.11.9	97.46% <100.00%> (+<0.01%)	⬆️
Py-3.12.10	98.41% <100.00%> (-0.01%)	⬇️
Py-3.13.3	98.40% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	97.26% <100.00%> (+<0.01%)	⬆️
Py-3.9.22	97.78% <98.57%> (+<0.01%)	⬆️
Py-pypy7.3.16	93.09% <98.57%> (+3.90%)	⬆️
VM-macos	97.49% <98.57%> (+<0.01%)	⬆️
VM-ubuntu	98.34% <98.57%> (+<0.01%)	⬆️
VM-windows	96.50% <98.57%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[codspeed-hq]

CodSpeed Performance Report

Merging #10910 will degrade performances by 8.64%

_{Comparing polkapolka:remove-mocked-coro (ee50d49) with master (b25eca0)}

Summary

❌ 1 (👁 1) regressions
✅ 59 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
👁	test_ten_streamed_responses_iter_any[pyloop]	21.6 ms	23.6 ms	-8.64%

[patchback]

Backport to 3.11: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply 36a2567 on top of patchback/backports/3.11/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910

Backporting merged PR #10910 into master

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/aio-libs/aiohttp.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/3.11/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910 upstream/3.11

4. Now, cherry-pick PR Remove mocked coro #10910 contents into that branch:

   $ git cherry-pick -x 36a2567d96903007a2b6ff6c10af9392767bfe0f

   If it'll yell at you with something like fatal: Commit 36a2567d96903007a2b6ff6c10af9392767bfe0f is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x 36a2567d96903007a2b6ff6c10af9392767bfe0f

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Remove mocked coro #10910 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.11/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910

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
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to 3.12: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply 36a2567 on top of patchback/backports/3.12/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910

Backporting merged PR #10910 into master

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/aio-libs/aiohttp.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/3.12/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910 upstream/3.12

4. Now, cherry-pick PR Remove mocked coro #10910 contents into that branch:

   $ git cherry-pick -x 36a2567d96903007a2b6ff6c10af9392767bfe0f

   If it'll yell at you with something like fatal: Commit 36a2567d96903007a2b6ff6c10af9392767bfe0f is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x 36a2567d96903007a2b6ff6c10af9392767bfe0f

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Remove mocked coro #10910 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.12/36a2567d96903007a2b6ff6c10af9392767bfe0f/pr-10910

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
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[Dreamsorcerer]

Ideally most of these should be replaced with create_autospec(), if anyone is willing to do a bit more on these and help make the code more robust.