Remove Field.cell_edge_sizes and Field.cell_areas #636

Job	Run time
mypy	3m 33s
py3.13 \| macos \| unit tests	9m 7s
py3.13 \| macos \| integration tests	15m 42s
py3.13 \| ubuntu \| unit tests	12m 14s
py3.13 \| ubuntu \| integration tests	14m 17s
py3.13 \| windows \| unit tests	13m 50s
py3.13 \| windows \| integration tests	22m 33s
py3.10 \| ubuntu \| unit tests	10m 44s
py3.10 \| ubuntu \| integration tests	23m 38s
py3.11 \| ubuntu \| unit tests	10m 22s
py3.12 \| ubuntu \| unit tests	10m 49s
merge-test-artifacts	2s
	2h 26m 51s

Provide feedback