powerpc/mm: Remove stale do_page_fault comment referring to SLB faults

SLB faults no longer call do_page_fault, this was removed somewhere
between 2.6.0 and 2.6.12.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-17-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-01-30 23:08:26 +10:00 • committed by Michael Ellerman
commit 31d6490ccb