Remove Extraneous Files and All Poetry-related Files due to Decision to Switch to Conda

[rr-85]

I want to delete all unnecessary files and remove any files related to Poetry, so that we can streamline our project directory and avoid conflicts or confusion now that we have decided to use Conda for dependency management.

[ntuziyihuang]

Nice, it is better to keep all the things clean. But my only concern is that the deleted file of the research plan, I think it should be added to doc or wiki to let others better understand our project