Revert "[BugFix] Fix non-tensor passage in _StepMDP" #10511

Job	Run time
build-wheel-windows (3.8, 3.8)	3m 30s
build-wheel-linux (3.8, cp38-cp38, --index-url https://download.pytorch.org/whl/cpu, "['cpu', '11...	1m 29s
build-wheel-windows (3.9, 3.9)	3m 1s
build-wheel-windows (3.10, 3.10.3)	3m 31s
build-wheel-windows (3.11, 3.11)	3m 1s
build-wheel-linux (3.9, cp39-cp39, --index-url https://download.pytorch.org/whl/cpu, "['cpu', '11...	1m 39s
build-wheel-linux (3.10, cp310-cp310, --index-url https://download.pytorch.org/whl/cpu, "['cpu', ...	1m 49s
build-wheel-linux (3.11, cp311-cp311, --index-url https://download.pytorch.org/whl/cpu, "['cpu', ...	1m 35s
test-wheel (linux, ubuntu-20.04, 3.8)	2m 15s
test-wheel (linux, ubuntu-20.04, 3.9)	2m 19s
test-wheel (linux, ubuntu-20.04, 3.10)	2m 36s
test-wheel (linux, ubuntu-20.04, 3.11)	2m 10s
test-wheel-windows (3.8)	4m 0s
test-wheel-windows (3.9)	6m 7s
test-wheel-windows (3.10)	3m 33s
test-wheel-windows (3.11)	3m 44s
	46m 19s

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