removed now-unneeded scipy limitation #451

Job	Run time
build-jax (3.8)	1m 59s
build-mpi (3.9)	7m 38s
build-jax (3.9)	45s
build-numpy (3.8, short)	1m 37s
build-mpi (3.10)	1m 41s
build-docs (3.8)	3m 29s
build-jax (3.10)	50s
build-numpy (3.8, optimize)	2m 37s
build-numpy (3.8, multivariate)	1m 28s
build-torch (3.8)	2m 1s
build-numpy (3.8, optimize-experimental)	3m 29s
build-torch (3.9)	2m 15s
build-numpy (3.9, short)	1m 39s
build-torch (3.10)	2m 7s
build-numpy (3.9, optimize)	2m 36s
build-numpy (3.9, multivariate)	1m 30s
build-numpy (3.9, optimize-experimental)	3m 23s
build-numpy (3.10, short)	1m 12s
build-numpy (3.10, optimize)	2m 41s
build-numpy (3.10, multivariate)	1m 31s
build-numpy (3.10, optimize-experimental)	3m 31s
	49m 59s

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