powerpc/64s: Remove idle workaround code from restore_cpu_cpufeatures

Idle code no longer uses the .cpu_restore CPU operation to restore
SPRs, so this workaround is no longer required.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190711022404.18132-2-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2019-07-11 12:24:04 +10:00 • committed by Michael Ellerman
commit 02b02ee1b0