cleaning ereg

[neuronflow]

Signed-off-by: neuronflow florian.kofler@tum.de

[Copilot]

Pull Request Overview

This PR removes the experimental eReg registration functionality from the codebase and cleans up associated references.

• Removed the TestEregRegistrator and associated eReg tests.
• Removed eReg dependency and its extras from pyproject.toml.
• Removed the eReg module and its import logic.
• Updated the example usage and documentation to remove eReg references.

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/test_registrators.py	Removed tests for eRegRegistrator
pyproject.toml	Removed eReg dependency and updated the extras list
example/example_modality_centric_preprocessor.py	Removed commented-out usage of eRegRegistrator
brainles_preprocessing/registration/eReg/eReg.py	Removed the eReg module code
brainles_preprocessing/registration/init.py	Removed conditional import and warning for eRegRegistrator
README.md	Updated registration section to remove reference to eReg

[neuronflow]

with some sad feelings we are retiring ereg support. Are there more files / dependencies that need to be updated @sarthakpati ?

[MarcelRosier]

should also be removed from the docs:
https://github.com/BrainLesion/preprocessing/blob/main/docs/source/registration.rst

[MarcelRosier]

Also remove from docs as mentioned above

[neuronflow]

@sarthakpati elastix and greedy also need to be mentioned in the documentation, see:
afcd06d

[sarthakpati]

@sarthakpati elastix and greedy also need to be mentioned in the documentation, see: afcd06d

Do you think you could add that in? I'm happy to review.

[neuronflow]

@sarthakpati elastix and greedy also need to be mentioned in the documentation, see: afcd06d

@MarcelRosier could you please create such a PR and request @sarthakpati for review? :)

see: https://github.com/BrainLesion/preprocessing/issues