remove pooch from show_diff.py

Author: FynnBe

scripts/show_diff.py

@@ -2,14 +2,10 @@
 from pathlib import Path
 from tempfile import TemporaryDirectory
 
-import pooch  # pyright: ignore[reportMissingTypeStubs]
-
 from bioimageio.core import load_description, save_bioimageio_yaml_only
 
 if __name__ == "__main__":
     rdf_source = "https://raw.githubusercontent.com/bioimage-io/spec-bioimage-io/main/example_descriptions/models/unet2d_nuclei_broad/v0_4_9.bioimageio.yaml"
-
-    local_source = Path(pooch.retrieve(rdf_source, None))
     model_as_is = load_description(rdf_source, format_version="discover")
     model_latest = load_description(rdf_source, format_version="latest")
     print(model_latest.validation_summary)