chore: simple cleanup

[ProteanCoding]

What does this PR change?

• Removing dead code from a duplicated library import
• Cleanup of configuration files

[aixaCode]

Hi, thanks for this contribution, this is really nice clean up. We will check it, as we need to run some checks first.

[ProteanCoding]

Obviously this cleanup is not that simple...
The code duplication is certainly an issue, if the code that is used in circleci is not the code that is actively maintained.
Perhaps the live Plugins folder should be moved out of the Assets folder ?

[ProteanCoding]

Moved this code-duplication removal to its own PR, in the meantime, it should be possible to merge these remaining two simple cleanups.

[aixaCode]

Could you describe why you are making this changes?

Could you follow this guide https://github.com/decentraland/unity-renderer/blob/dev/.github/CONTRIBUTING.md

[ProteanCoding]

I do believe I have been following the CONTRIBUTING.md guide.
I will add comments to the two changes describing their purpose.

[ProteanCoding]

On all modern OSes, modern editors (including VS Code) can deal with lf endings just fine, crlf is not needed.
If git is allowed to set the line endings to crlf before commits, this leads to discrepancies that are annoyingly useless at best.

And who knows what at worse ! Some of these files end up being used in a Docker environment, which will be expecting lf endings.

[ProteanCoding]

This folder can remain if the build process is interrupted before the end.
Its brief appearance has also been confusing my own file monitoring process.