Revert 1140 optional scipy #2512

Job	Run time
linux-python3.13-ros3	1m 14s
linux-gallery-python3.12-upgraded-optional	39s
linux-gallery-python3.9-minimum	37s
windows-gallery-python3.12-upgraded-optional	1m 36s
windows-gallery-python3.9-minimum	1m 6s
linux-python3.13-upgraded-optional	2m 3s
linux-python3.13-upgraded	1m 52s
linux-python3.9-minimum	1m 50s
macos-python3.13-upgraded-optional	1m 13s
macos-python3.9-minimum	4m 10s
windows-python3.13-upgraded-optional	3m 48s
windows-python3.9-minimum	2m 32s
Deploy pre-release from dev	0s
	22m 40s

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