Removed bob.extension in init

src/bob/bio/vein/__init__.py

 #!/usr/bin/env python
 # vim: set fileencoding=utf-8 :
 # isort: skip_file
-
-
-def get_config():
-    """Returns a string containing the configuration information."""
-
-    import bob.extension
-
-    return bob.extension.get_config(__name__)
-
-
 # gets sphinx autodoc done right - don't remove it
 __all__ = [_ for _ in dir() if not _.startswith("_")]