powerpc/32: Remove 'noltlbs' kernel parameter

powerpc/32: Remove 'noltlbs' kernel parameter

[ Upstream commit 56e54b4e6c477b2a7df43f9a320ae5f9a5bfb16c ]

Mapping without large TLBs has no added value on the 8xx.

Mapping without large TLBs is still necessary on 40x when
selecting CONFIG_KFENCE or CONFIG_DEBUG_PAGEALLOC or
CONFIG_STRICT_KERNEL_RWX, but this is done automatically
and doesn't require user selection.

Remove 'noltlbs' kernel parameter, the user has no reason
to use it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/80ca17bd39cf608a8ebd0764d7064a498e131199.1655202721.git.christophe.leroy@csgroup.eu
Stable-dep-of: f9f2bff64c2f ("powerpc/8xx: Fix initial memory mapping")
Signed-off-by: Sasha Levin <sashal@kernel.org>