cgal: remove isotropic_remeshing #737

Job	Run time
Test in Docker container	5m 45s
Calculate and upload test coverage	6m 18s
Test with Python (3.9, ubuntu-latest)	6m 17s
Test with Python (3.9, macOS-latest)	7m 53s
Test with Python (3.9, windows-latest)	13m 38s
Test with Python (3.10, ubuntu-latest)	6m 9s
Test with Python (3.10, macOS-latest)	10m 23s
Test with Python (3.10, windows-latest)	13m 39s
Test with Python (3.11, ubuntu-latest)	6m 5s
Test with Python (3.11, macOS-latest)	8m 40s
Test with Python (3.11, windows-latest)	13m 39s
Test with Python (3.12, ubuntu-latest)	6m 20s
Test with Python (3.12, macOS-latest)	13m 46s
Test with Python (3.12, windows-latest)	13m 39s
	2h 12m 11s

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