Remove OpenCV integration

[thecode]

Proposed change

Remove OpenCV integration, integration has 0 active users and is broken for over a year, wheels fail to build already on Python 3.11 and doesn't build at all on Python 3.12

History:
Previous attempts: #100468 (comment)
Failed build for Python 3.12: https://github.com/home-assistant/core/actions/runs/8272544052

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Unable to restart since 2023.6.1 - Unable to install opencv-python-headless #94617
• This PR is related to issue:
• Link to documentation pull request: Remove OpenCV integration home-assistant.io#31888

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[bdraco]

The numpy versions are pinned in pyproject
https://github.com/opencv/opencv-python/blob/68/pyproject.toml#L5

So it will never be able to resolve to a working version of numpy

[bdraco]

Supported Python versions
Python 3.x compatible pre-built wheels are provided for the officially supported Python versions (not in EOL):

3.6
3.7
3.8
3.9
3.10

[bdraco]

I don't see a solution for this one

[frenck]

Thanks, @thecode 👍

../Frenck

[OkhammahkO]

Just a comment that it has 0 active users because it is broken.

I'm sad to see this go..... I used it for my favourite HA project and was waiting patiently hoping for a fix.

https://community.home-assistant.io/t/timelapse-video-with-computer-vision-make-timelapse-with-bounding-boxes-of-detected-objects-using-your-own-trained-opencv-model/231860?u=mahko_mahko

Oh well. Thanks for your efforts to support it while it was alive.

[frenck]

Just a comment that it has 0 active users because it is broken.

It has been broken for a long time, no-one has taken the effort to fix it. At that point, there is not much more we can do.

../Frenck