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GH-36863: [C#] Remove unnecessary applied fix to not shutdown PythonEngine on CDataInterfacePythonTests if .NET is > 5.0 (#36872)

### Rationale for this change

Maintenance branch fix is not necessary.

### What changes are included in this PR?

Remove unnecessary patch

### Are these changes tested?

Yes, on CI

### Are there any user-facing changes?

No
* Closes: #36863

Authored-by: Raúl Cumplido <raulcumplido@gmail.com>
Signed-off-by: Raúl Cumplido <raulcumplido@gmail.com>