front: remove pathSteps property from TimesStopsOutput #9985

Job	Run time
build (core-build, core)	14s
build (editoast, editoast-test)	4m 2s
build (gateway-test, gateway-standalone, gateway-front)	2m 21s
check_commits	6s
build (front-build, front-tests, front-devel, front-nginx)	2m 45s
check_generated_railjson_sync	22s
check_integration_tests	1m 44s
build (osrdyne, osrdyne-test)	13s
check_railjson_generator	1m 48s
Check final newline	6s
check_infra_schema_sync	21s
check_osrd_schema	39s
check_toml	9s
check_editoast_lints	5m 37s
check_core	4m 15s
check_editoast_tests	5m 18s
check_front_rtk_sync	1m 29s
check_editoast_openapi	1m 14s
check_front	2m 35s
check_gateway	2m 9s
check_osrdyne	2m 41s
integration_tests	6m 45s
	46m 53s

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