sh64: Kill off arch/sh64/oprofile.

The same implementation exists in arch/sh/oprofile, so get rid of
this version.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh64/oprofile/Makefile

-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
-		oprof.o cpu_buffer.o buffer_sync.o \
-		event_buffer.o oprofile_files.o \
-		oprofilefs.o oprofile_stats.o \
-		timer_int.o )
-
-profdrvr-y				:= op_model_null.o
-
-oprofile-y				:= $(DRIVER_OBJS) $(profdrvr-y)
-

arch/sh64/oprofile/op_model_null.c

-/*
- * arch/sh64/oprofile/op_model_null.c
- *
- * Copyright (C) 2003  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
-	return -ENODEV;
-}
-
-void oprofile_arch_exit(void)
-{
-}
-