removing sharrow settings #700

Job	Run time
linux-64-py3.10	5m 0s
prototype_mtc	45m 3s
macOS	14m 46s
prototype_psrc_in_development	11m 27s
win-64	10m 15s
estimation_mode_test	16m 26s
prototype_mtc	42m 22s
random_seed_generation_test	2m 26s
placeholder_psrc	37m 11s
prototype_marin	1m 23s
develop-docbuild	0s
prototype_mtc_extended	2h 11m 40s
placeholder_sandag	1h 58m 44s
prototype_sandag_xborder	4m 17s
production_semcog	4m 50s
prototype_mwcog	42m 58s
placeholder_multiple_zone	7m 20s
	8h 16m 8s

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