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

This reverts commit 104e258a 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: I27b36a66c6ec9adfa8c10aaeddfde8be28829f4a
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>