[minor] Remove non-standard node libraries

[liamhuber]

Domain-specific nodes are preserved in version 0.8.0, and also now stored on their own repo in the pyiron organization.

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:point_left: Launch a binder notebook on branch _pyiron/pyiron_workflow/removelibraries

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Coverage variation	Diff coverage
:white_check_mark: +3.61% (target: -1.00%)	:white_check_mark: ∅

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (63fd619678d0f67d5deeda0f6d47c5f47ccf80fa) | 3566 | 3171 | 88.92% | | | Head commit (e74390e2c64209a11d198d2d567c522e8a978ba3) | 3417 (-149) | 3162 (-9) | 92.54% (**+3.61%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#353) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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