powerpc: Remove oprofile RS64 support

We no longer support these cpus, so we don't need oprofile support for
them either.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --cc arch/powerpc/include/asm/oprofile_impl.h
Simple merge

diff --cc arch/powerpc/oprofile/Makefile
Simple merge

diff --cc arch/powerpc/oprofile/common.c
Simple merge

diff --cc arch/powerpc/oprofile/op_model_rs64.c
Simple merge