Revert "perf: Fix event leak upon exec and file release"

This reverts commit 9ad46f1f which is
commit 3a546541 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Ie1637fa422dba04d3ca414d64ae668a859c21f19
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>