misc: rm rpyc from PACKAGE_LIST

[zhyncs]

Motivation

as titled cc @merrymercy @Ying1123 @hnyls2002
ref #646

Modification

as titled

Checklist

1. Ensure pre-commit or other linting tools are used to fix potential lint issues.
2. Confirm that modifications are covered by complete unit tests. If not, please add more unit tests for correctness.
3. Modify documentation as needed, such as docstrings or example tutorials.