Remove duplicated recipe.yaml files in Tools/pixi-packages

[isuruf]

Feature or enhancement

Proposal:

Since prefix-dev/pixi#5364 has been merged, we can remove the duplicated recipe.yaml files.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-148858: Remove duplicated recipe.yaml files in Tools/pixi-packages #148859