Revert "perf: Rework perf_event_exit_event()"

This reverts commit 94902ee2996a7f71471138093495df452dab87b6 which is
upstream commit ef54c1a476aef7eef26fe13ea10dc090952c00f8.

Reverting for now due to issues that need to get fixed upstream.

Signed-off-by: Sasha Levin <sashal@kernel.org>
2 files changed