powerpc/iommu: Code cleanup for cell/iommu.c

This part was commented from commit 165785e5c0 ("[POWERPC] Cell
iommu support") in about 17 years before.

If there are no plans to enable this part code in the future,
we can remove this dead code.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240125082637.532826-1-chentao@kylinos.cn
This commit is contained in:
Kunwu Chan 2024-01-25 16:26:37 +08:00 • committed by Michael Ellerman
commit f3560a2ba5