fix: 🐛 Remove old code that only applies for bot guild owners (not possible anymore)

[ToothyDev]

Summary

Removes some code that only worked when owners were able to own guilds, since this is no longer the case, the code is now effectively dead

Information

• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed).
• This PR is not a code change (e.g. documentation, README, typehinting,
  examples, ...).

Checklist

• I have searched the open pull requests for duplicates.
• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why.
• I have updated the changelog to include these changes.

[pycord-app]

Thanks for opening this pull request!
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This pull request can be checked-out with:

git fetch origin pull/3056/head:pr-3056
git checkout pr-3056

This pull request can be installed with:

pip install git+https://github.com/Pycord-Development/pycord@refs/pull/3056/head

[Lulalaby]

can you also check if we have references to create guild anywhere?

[ToothyDev]

can you also check if we have references to create guild anywhere?

Seems to be quite a few, I'll get on it. I probably missed delete stuff there too

[Lulalaby]

Thanks ❤️

[Paillat-dev]

lgtm

[Lulalaby]

Begone old code